CN217659382U - Liquid level sensor protection casing, steam generator and domestic appliance - Google Patents

Liquid level sensor protection casing, steam generator and domestic appliance Download PDF

Info

Publication number
CN217659382U
CN217659382U CN202221501903.4U CN202221501903U CN217659382U CN 217659382 U CN217659382 U CN 217659382U CN 202221501903 U CN202221501903 U CN 202221501903U CN 217659382 U CN217659382 U CN 217659382U
Authority
CN
China
Prior art keywords
level sensor
liquid
groove
liquid level
cover body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221501903.4U
Other languages
Chinese (zh)
Inventor
李洁
贾晓芸
鞠珊珊
朱凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Smart Technology R&D Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Smart Technology R&D Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Smart Technology R&D Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Smart Technology R&D Co Ltd
Priority to CN202221501903.4U priority Critical patent/CN217659382U/en
Application granted granted Critical
Publication of CN217659382U publication Critical patent/CN217659382U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cookers (AREA)

Abstract

The utility model relates to the technical field of household appliances, a liquid level sensor protection casing, steam generator and household appliances is provided. Foretell level sensor protection casing, including the cover body, the cover body is used for the cover to establish the outside at level sensor, the first end of the cover body is equipped with network structure, the second end of the cover body is used for fixing the cover body. The utility model provides a level sensor protection casing, through setting the first end of the cover body to network structure, can be when the liquid level height is higher, make liquid get into through network structure cover internal with the level sensor contact, guarantee that level sensor can detect liquid, and highly lower at the liquid level, when liquid takes place the boiling, network structure can block the liquid entering cover internal portion that the splash got up to liquid has been avoided level sensor to contact liquid and has taken place the misjudgement.

Description

Liquid level sensor protection casing, steam generator and domestic appliance
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a level sensor protection casing, steam generator and household appliances.
Background
Steam generator is provided with level sensor usually for detect the liquid level in the steam generator evaporation intracavity, when the evaporation intracavity liquid level is lower, on liquid medium boiling splash level sensor, lead to level sensor to take place the misjudgement, fail in time to evaporation intracavity pump sending liquid, lead to steam generator to take place to dry combustion method, so that lead to the fact the damage to steam generator.
SUMMERY OF THE UTILITY MODEL
The utility model provides a level sensor protection casing, steam generator and domestic appliance for liquid splash level sensor among the solution prior art leads to level sensor to take place the defect of misjudgement.
The utility model provides a level sensor protection casing, the rain cover comprises a cover body, the cover body is used for the cover to establish the outside at level sensor, the first end of the cover body is equipped with network structure, the second end of the cover body is used for fixing the cover body.
According to the utility model provides a pair of level sensor protection casing, the terminal surface of the first end of the cover body and/or the lateral wall of first end is equipped with network structure.
According to the utility model provides a pair of liquid level sensor protection casing, the terminal surface of the first end of the cover body and/or the lateral wall of first end is equipped with a plurality of rectangle through-holes, a plurality of rectangle through-holes construct network structure.
According to the utility model provides a pair of liquid level sensor protection casing, the inner wall that the cover body is relative is equipped with first draw-in groove and the second draw-in groove that runs through the outer wall, first draw-in groove with the second draw-in groove is located the second end of the cover body.
According to the utility model provides a pair of level sensor protection casing, first draw-in groove includes: the first through groove extends from the end face of the second end to the first end, and the second through groove is perpendicular to and connected with the first through groove;
the second card slot includes: the third through groove extends from the end surface of the second end to the first end, and the fourth through groove is vertically arranged and connected with the third through groove;
the first through groove and the third through groove are oppositely arranged, and the second through groove and the fourth through groove are opposite in extending direction.
The utility model also provides a steam generator, include:
a first housing;
the liquid level sensor is arranged on the bottom surface of the first shell;
as above level sensor protection casing, the level sensor protection casing is established level sensor's outside, the second end of level sensor protection casing with the bottom surface of first casing is connected.
According to the utility model provides a pair of steam generator still includes the erection column, the first end of erection column with the bottom surface of first casing is connected, the second end of erection column with level sensor connects, the relative both sides of erection column are equipped with the arch, protruding with first draw-in groove with second draw-in groove joint.
According to the utility model provides a pair of steam generator still includes:
the liquid level sensor is used for detecting the liquid level of liquid in the evaporation cavity;
the heating pipe is arranged outside the second shell and used for heating liquid in the evaporation cavity.
According to the utility model provides a pair of steam generator still includes the sealing member, the sealing member sets up the terminal surface of the open end of first casing.
The utility model also provides a household appliance, include as above steam generator.
The utility model provides a level sensor protection casing, through setting the first end of the cover body to network structure, can be when the liquid level height is higher, make liquid get into through network structure cover internal with the level sensor contact, guarantee that level sensor can detect liquid, and highly lower at the liquid level, when liquid takes place the boiling, network structure can block the liquid entering cover internal portion that the splash got up to liquid has been avoided level sensor to contact liquid and has taken place the misjudgement.
Drawings
In order to illustrate the technical solutions of the present invention or the prior art more clearly, the drawings used in the following embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a protective cover for a liquid level sensor provided by the present invention;
fig. 2 is a schematic structural view of a steam generator;
fig. 3 is a schematic structural view of the first housing shown in fig. 2;
reference numerals are as follows:
10: a cover body; 11: a rectangular through hole; 12: a first card slot; 13: a second card slot; 100: a steam generator; 101: a first housing; 102: a liquid level sensor; 103: a seal member; 110: a second housing; 111: heating a tube; 121: a first through groove; 122: a second through groove; 131: a third through groove; 132: and a fourth through groove.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings in the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The features of the terms first and second in the description and in the claims of the present invention may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless explicitly stated or set forth otherwise, the terms "disposed" and "connected" should be interpreted broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and the connection may be internal to the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, 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", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The liquid level sensor protective cover, the steam generator and the household appliance of the present invention will be described with reference to fig. 1 to 3.
In one embodiment of the invention, as shown in fig. 1, the liquid level sensor shield comprises a shield body 10. The cover body 10 is configured to be sleeved outside the liquid level sensor 102, a first end of the cover body 10 is provided with a net structure, and a second end of the cover body 10 is configured to fix the cover body 10.
Specifically, in use, the enclosure 10 is disposed outside the liquid level sensor 102, the second end of the enclosure 10 can be connected to a mounting plate or a mounting base of the liquid level sensor 102, and the second end of the enclosure 10 can also be connected to a component connected to the liquid level sensor 102. Taking the example of applying the liquid level sensor protective cover to the steam generator 100, the steam generator 100 includes a first housing 101 and a second housing 110 covering together, the first housing 101 is located above the second housing 110, the liquid level sensor 102 is connected to the bottom surface of the first housing 101, the cover 10 is sleeved outside the liquid level sensor 102, and the second end of the cover 10 is also connected to the bottom surface of the first housing 101. An evaporation cavity is arranged in the second shell 110, liquid is arranged in the evaporation cavity, the liquid level sensor 102 is used for detecting the liquid level of the liquid in the evaporation cavity, when the liquid level is high and the liquid is in contact with the liquid level sensor 102, the liquid level sensor 102 does not send a signal to the pump, the pump does not work, and the liquid is not pumped into the evaporation cavity; when the liquid level is low, the liquid level sensor 102 cannot detect liquid, the liquid level sensor 102 is triggered to send a signal to the pump, and the pump starts to work to pump liquid into the evaporation cavity.
Because the cover 10 is disposed in the first housing 101, the first end of the cover 10 may contact with the liquid, and when the first end of the cover 10 is immersed in the liquid, the liquid enters the cover 10 from the mesh structure at the first end of the cover 10 and contacts with the liquid level sensor 102, so that the liquid level sensor 102 can detect the height of the liquid level. When the liquid level is low, the splashed liquid in the boiling process of the liquid can be scattered by the net structure of the cover body 10, so that the splashed liquid is prevented from entering the cover body 10 and contacting the liquid level sensor 102, and the misjudgment of the liquid level sensor 102 can be avoided.
It can be understood that: in this embodiment, the lateral wall and the end face of the cover body 10 all have a certain thickness, and the formed mesh structure also has a certain thickness, in the embodiment of the present invention, the pores of the mesh structure are smaller, so as to block the splashed liquid drop.
Optionally, in an embodiment of the present invention, the liquid may be water.
The embodiment of the utility model provides a level sensor protection casing sets the network structure through the first end with the cover body, can be when the liquid level height is higher, make liquid get into cover internal through network structure and the level sensor contact, guarantee that level sensor can detect liquid, and highly lower at the liquid level, when liquid takes place the boiling, network structure can block the liquid entering cover internal portion that the splash got up to liquid has been avoided level sensor to contact liquid and has taken place the misjudgement.
In one embodiment of the present invention, as shown in fig. 1, the end surface of the first end of the cover 10 and/or the side wall of the first end is provided with the mesh structure.
Specifically, a mesh structure may be optionally provided on the end surface of the first end of the enclosure 10, and when the liquid level is high, the liquid enters the enclosure 10 from the mesh structure of the end surface, so as to contact the liquid level sensor 102; when the liquid level is low, the net-shaped structure of the end face can scatter the splashed liquid, the side wall is of a closed structure, the liquid can be prevented from entering the cover body 10, the detection precision of the liquid level sensor 102 is improved, and misjudgment of the liquid level sensor 102 is avoided.
Optionally, a net structure may be provided on the side wall of the first end of the enclosure 10, and when the liquid level is high, the liquid enters the enclosure 10 from the net structure of the side wall, so as to contact with the liquid level sensor 102; when the liquid level is low, the end face sealing structure can better prevent the splashed liquid from entering the cover body 10, and the net-shaped structure on the side wall can also scatter the splashed liquid, so that the liquid level sensor 102 is prevented from misjudging due to the fact that the splashed liquid enters the cover body 10.
Optionally, in an embodiment of the present invention, the end face and the side wall of the first end of the cover 10 are both provided with a mesh structure. When the liquid level is high, the liquid can enter the housing 10 from the end face and the side wall of the first end, so as to contact with the liquid level sensor 102; when the liquid level is low, the net structures on the end surface and the side wall can scatter the splashed liquid, so that the splashed liquid is prevented from entering the cover body 10, and the liquid level sensor 102 is prevented from being judged by mistake.
As shown in fig. 1, in an embodiment of the present invention, the end surface of the first end of the cover 10 and/or the sidewall of the first end is provided with a plurality of rectangular through holes 11, and the plurality of rectangular through holes 11 are configured into the mesh structure.
Specifically, a plurality of rectangular through holes 11 may be provided on the end surface and/or the side wall of the first end of the cover 10. At higher liquid level, liquid may enter the enclosure 10 through the rectangular through-hole and contact the level sensor 102. When the liquid level is low and the liquid is boiled and splashed, the liquid drops are usually circular, and the diameter of the liquid drops is larger than the width of the rectangular through hole, so that the splashed liquid drops can not enter the cover body 10 when the liquid is boiled.
In one embodiment of the present invention, the inner wall of the cover 10 opposite to the outer wall is provided with a first engaging groove 12 and a second engaging groove 13, which penetrate the outer wall, and the first engaging groove 12 and the second engaging groove 13 are located at the second end of the cover 10.
Specifically, in this embodiment, the opposite side walls of the cover 10 are provided with a first engaging groove 12 and a second engaging groove 13, and the cover 10 is engaged with the mounting plate or the mounting base of the liquid level sensor 102 or engaged with other components through the first engaging groove 12 and the second engaging groove 13.
Alternatively, in the present embodiment, the first card slot 12 and the second card slot 13 may be rectangular slots.
Further, as shown in fig. 1, in an embodiment of the present invention, the first card slot 12 includes: a first through groove 121 and a second through groove 122. The first through groove 121 extends from the end surface of the second end of the cover body 10 to the first end, the second through groove 122 is connected with the first through groove 121, and the second through groove 122 is perpendicular to the first through groove.
The second card slot 13 includes: a third through groove 131 and a fourth through groove 132. The third through groove 131 extends from the end surface of the second end of the cover 10 to the first end, the fourth through groove 132 is connected to the third through groove 131, the fourth through groove 132 is perpendicular to the third through groove 131, wherein the first through groove 121 and the third through groove 131 are arranged oppositely, and the second through groove 122 and the fourth through groove 132 extend in opposite directions.
Specifically, the second end of the cover 10 extends from the end face to the first end to form a first through groove 121 and a third through groove 131, the first through groove 121 and the third through groove 131 are disposed oppositely, the second through groove 122 is perpendicular to and connected to the first through groove 121, and the fourth through groove 132 is perpendicular to and connected to the third through groove 131, so that the first card slot 12 and the second card slot 13 are L-shaped. When the mask body 10 is installed, the mask body can be clamped with the first clamping groove 12 and the second clamping groove 13 through the arrangement of the clamping buckles, and therefore the mask body 10 is fixed.
As shown in fig. 2 and 3, an embodiment of the present invention also provides a steam generator 100, including: a first housing 101, a level sensor 102, and a level sensor shield. The liquid level sensor 102 is arranged on the bottom surface of the first shell 101, the protective cover of the liquid level sensor is sleeved outside the liquid level sensor 102, and the second end of the protective cover of the liquid level sensor is connected with the bottom surface of the first shell 101.
Specifically, the first casing 101 has a bottom surface, and an end opposite to the bottom surface is open. A liquid level sensor 102 is provided on the bottom surface of the first housing 101, and a liquid level sensor shield is also attached to the bottom surface of the first housing 101.
The embodiment of the utility model provides a steam generator establishes the level sensor protection casing through the outside cover at level sensor, can be lower in steam generator liquid level, during the liquid boiling, breaks up the liquid drop that splashes on the level sensor protection casing, and then avoids the liquid drop to get into inside the level sensor protection casing, has avoided level sensor to take place the misjudgement, has guaranteed level sensor's detection precision, and then has avoided steam generator to take place dry combustion method, leads to the occurence of failure of steam generator scaling loss.
Further, in an embodiment of the present invention, the steam generator 100 further includes a mounting post. The first end of erection column is connected with the bottom surface of first casing 101, and the second end of erection column is connected with level sensor 102, and the relative both sides of erection column are equipped with the arch, and protruding and first draw-in groove 12 and the joint of second draw-in groove 13.
Specifically, the bottom surface of the first housing 101 is provided with a mounting post into which the level sensor 102 is inserted. The opposite sides of the mounting post extend outwards to form bulges. The liquid level sensor protective cover comprises a cover body 10, a net-shaped structure is arranged at the first end of the cover body 10, and a first clamping groove 12 and a second clamping groove 13 are arranged at the second end of the cover body 10. Specifically, the second end of the cover 10 extends from the end face to the first end to form a first through slot 121 and a third through slot 131, the first through slot 121 and the third through slot 131 are disposed opposite to each other, the second through slot 122 is perpendicular to and connected to the first through slot 121, and the fourth through slot 132 is perpendicular to and connected to the third through slot 131, so that the first card slot 12 and the second card slot 13 are L-shaped. During installation, the protrusions are first positioned in the first through groove 121 and the third through groove 131, and when the protrusions are positioned at the ends of the first through groove 121 and the third through groove 131, the cover 10 is rotated to position the pair of protrusions in the second through groove 122 and the fourth through groove 132, respectively, thereby fixing the cover 10 to the installation post.
As shown in fig. 2, in an embodiment of the present invention, the steam generator 100 further includes a second housing 110 and a heating pipe 111. An evaporation chamber is arranged in the second housing 110, and the liquid level sensor 102 is used for detecting the liquid level in the evaporation chamber. The heating pipe 111 is disposed outside the second housing, and the heating pipe 111 is used for heating the liquid in the evaporation cavity.
Specifically, the second housing 110 is covered with the first housing 101, and the second housing 110 is located below the first housing 101. An evaporation cavity is arranged in the second shell 110, and liquid is arranged in the evaporation cavity. A liquid level sensor 102 and a liquid level sensor shield are mounted to the bottom surface of the first housing 101. When the liquid level in the evaporation cavity is higher, liquid enters the liquid level sensor protective cover from the net structure of the liquid level sensor protective cover and contacts with the liquid level sensor 102, at the moment, the liquid level sensor 102 does not send a signal to the pump, and the pump does not work. When the liquid level in the evaporation cavity is low, the liquid level sensor 102 cannot detect liquid, the liquid level sensor 102 is triggered to send a signal to the pump, and the pump starts to work and pumps the liquid into the evaporation cavity. The heating tube 111 is used for heating the liquid in the evaporation cavity to generate steam.
As shown in fig. 3, in one embodiment of the present invention, the steam generator 100 further comprises a sealing member 103. A sealing member 103 is disposed at an end face of the open end of the first casing 101, so that the first casing 101 and the second casing 110 can be connected in a sealing manner after being covered.
The embodiment of the utility model provides a domestic appliance is still provided, including steam generator 100.
In particular, the household appliance may be a steam oven or a steam and bake all-in-one machine.
The embodiment of the utility model provides a household appliance through setting up steam generator, can prevent to evaporate the interior liquid level of cavity and take place dry combustion method when lower to with the occurence of failure of steam generator scaling loss, guaranteed household appliance's quality.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a level sensor protection casing, its characterized in that, includes the cover body, the cover body is used for the cover to establish in level sensor's outside, the first end of the cover body is equipped with network structure, the second end of the cover body is used for fixing the cover body.
2. The fluid level sensor protective cover according to claim 1, wherein an end face of the first end of the cover and/or a side wall of the first end is provided with the mesh structure.
3. The fluid level sensor protective cover according to claim 2, wherein an end face of the first end of the cover and/or a side wall of the first end is provided with a plurality of rectangular through holes configured as the mesh structure.
4. The protective cover according to claim 1, wherein opposing inner walls of the cover body are provided with first and second notches extending through the outer wall, the first and second notches being located at the second end of the cover body.
5. The liquid level sensor protective cover of claim 4, wherein the first card slot comprises: the first through groove extends from the end face of the second end to the first end, and the second through groove is perpendicular to and connected with the first through groove;
the second card slot includes: the third through groove extends from the end surface of the second end to the first end, and the fourth through groove is vertically arranged and connected with the third through groove;
the first through groove and the third through groove are arranged oppositely, and the extending directions of the second through groove and the fourth through groove are opposite.
6. A steam generator, comprising:
a first housing;
the liquid level sensor is arranged on the bottom surface of the first shell;
the fluid level sensor shield of claim 4 or 5, said fluid level sensor shield being sleeved over said fluid level sensor, a second end of said fluid level sensor shield being connected to a bottom surface of said first housing.
7. The steam generator of claim 6, further comprising a mounting post, wherein a first end of the mounting post is connected to the bottom surface of the first housing, a second end of the mounting post is connected to the liquid level sensor, protrusions are disposed on two opposite sides of the mounting post, and the protrusions are engaged with the first and second engaging grooves.
8. The steam generator of claim 6, further comprising:
the liquid level sensor is used for detecting the liquid level of liquid in the evaporation cavity;
the heating pipe is arranged outside the second shell and used for heating liquid in the evaporation cavity.
9. The steam generator of claim 6, further comprising a seal disposed at an end face of the open end of the first housing.
10. A household appliance, characterized in that it comprises a steam generator according to any one of claims 6 to 9.
CN202221501903.4U 2022-06-15 2022-06-15 Liquid level sensor protection casing, steam generator and domestic appliance Active CN217659382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221501903.4U CN217659382U (en) 2022-06-15 2022-06-15 Liquid level sensor protection casing, steam generator and domestic appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221501903.4U CN217659382U (en) 2022-06-15 2022-06-15 Liquid level sensor protection casing, steam generator and domestic appliance

Publications (1)

Publication Number Publication Date
CN217659382U true CN217659382U (en) 2022-10-28

Family

ID=83710024

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221501903.4U Active CN217659382U (en) 2022-06-15 2022-06-15 Liquid level sensor protection casing, steam generator and domestic appliance

Country Status (1)

Country Link
CN (1) CN217659382U (en)

Similar Documents

Publication Publication Date Title
CN217659382U (en) Liquid level sensor protection casing, steam generator and domestic appliance
CN111616414A (en) Heating atomization device for preventing liquid leakage and electronic equipment
CN215571205U (en) Electric water heater foaming supporting structure and electric water heater
CN210930838U (en) High-efficiency evaporator and steam cooking equipment using same
CN215816322U (en) Battery with a battery cell
CN111926527B (en) Clothes treatment device and foam sensing method
CN209733912U (en) Locking adjustable dish washer footing and base structure
CN216160669U (en) Accelerometer core structure capable of accelerating heat dissipation
CN216962365U (en) Water level detection device and cleaning equipment
CN219629534U (en) Water tank with liquid level detection device and cleaning equipment
KR910004137B1 (en) Ring of leakage liquid sensor
CN217402826U (en) Shell assembly and integrated air conditioner
CN219738064U (en) Pressure controller with long service life
CN219470505U (en) Steam electric iron
CN221267653U (en) Steam-water separator and equipment
CN219346791U (en) Condensate water collecting structure and gas water heating equipment
CN212437295U (en) Heating atomization device for preventing liquid leakage and electronic equipment
CN219958347U (en) Center control module and electric two-wheeled vehicle with same
CN209733891U (en) Dish washing machine
CN215628877U (en) Clothes dryer
CN218390851U (en) Fruit and vegetable cleaning machine
CN220083222U (en) Floating atomization assembly and humidifier
CN218857008U (en) Waterproof structure of robot
CN221035123U (en) Water tank liquid level detection structure, water tank and household appliance using same
CN220153816U (en) Water leakage detection device and water purifier

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant