humidifier

Abstract

The humidifier of the present disclosure includes: an inner tank that forms a space in which water is held and includes a bottom wall in which a bottom hole is formed; and a connector that passes through the bottom hole and is connected to the inner tank. A bottom hole through which the connector passes is formed on the bottom wall. A first groove spaced apart from the bottom hole in a radial direction and formed in a ring shape, and a plurality of second grooves radially extending so as to intersect the first groove are formed on the bottom wall of the inner tank.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention

[0001] The present disclosure relates to a humidifier, and more particularly, to a humidifier including a display.2. Description of the Related Art

[0002] A humidifier is a device that evaporates water to discharge humidified air with a high moisture content.

[0003] A water tank for holding water is placed inside the humidifier. In order to increase an operating time of the humidifier, a size of the water tank can be increased. As the size of the water tank increases, the amount of water that can be held increases, which may increase the operating time of the humidifier.

[0004] However, as the size of the water tank increases, a weight increases, which may cause a problem in that it is difficult for a user to carry the humidifier around. In addition, when there is an additional component inside the water tank, a load of the water tank may be increased, which may also cause a problem in that it is difficult for the user to carry the humidifier.

[0005] Korean Patent Unexamined Publication No. KR 10-2022-0066454 A discloses a large-capacity humidifier. However, even in a structure of the prior art document, it may be difficult to separate the water tank and supply water or mount the water tank.

[0006] In addition, a water tank in which a large amount of water is held can be deformed in shape by applying a load to a bottom surface with a load of water held therein. In addition, when the user drops the water tank in the process of moving a heavy water tank, there is a problem in that deformation of the water tank can easily occur.

[0007] The deformation in shape of the water tank may make it difficult to be coupled to a component connected to the water tank.SUMMARY OF THE INVENTION

[0008] The present disclosure has been made in view of the above problems, and it is an object of the present disclosure to solve the above-described problems and other problems. Another object is to provide a humidifier in which a shape of a water tank may be maintained even with a load or an impact applied to the water tank.

[0009] Yet another object is to provide a humidifier in which shape deformation does not easily occur even at an upper end of the water tank by the impact.

[0010] In order to achieve the object, a humidifier according to an embodiment of the present disclosure includes: an inner tank forming a space for storing water and including a bottom wall having a bottom hole; and a connector penetrating the bottom hole and connected to the inner tank. A bottom hole penetrated by the connector is formed on the bottom wall.

[0011] The bottom wall of the inner tank has a first groove spaced apart from the bottom hole in a radial direction and formed in a ring shape, and a plurality of second grooves extending radially to intersect the first groove.

[0012] The first groove and the plurality of second groove protrude upward on the bottom wall.

[0013] Each of the plurality of second grooves is spaced apart from the bottom hole.

[0014] A radial length of each of the plurality of second grooves is formed to be longer than a width of the first groove.

[0015] The plurality of second grooves consist of eight to twelve.

[0016] The bottom wall of the inner tank has a third groove is formed around the bottom hole.

[0017] The third groove intersects the plurality of second grooves.

[0018] Each of the plurality of second grooves includes a second-1 groove extending inward in the radial direction from the first groove and a second-2 groove extending outward in the radial direction from the first groove.

[0019] A radial length of the second-1 groove is formed to be longer than a radial length of said second-2 groove.

[0020] The inner tank includes a circumferential wall extending upward from an outer circumferential end of the bottom wall, and an extension wall having a bent shape to connect the circumferential wall and the bottom wall. The first groove is placed closer to the outer circumferential end than to an inner circumferential end of the bottom wall.

[0021] A packing is disposed around the bottom hole in the bottom wall.

[0022] The connector includes a connector body disposed to penetrate the bottom hole, and a connector holder disposed outside the inner tank and coupled to the connector body. When the connector holder is coupled to the connector body, the packing is in contact with the connector body.

[0023] A handle is disposed at an upper end portion of the inner tank. The handle includes a handle fixing portion connected to the inner tank, and a handle bar crossing the handle fixing portion. The handle fixing portion is disposed to cover an outer circumference of the inner tank.

[0024] The handle fixing portion includes an outer wall disposed outside the inner tank and an inner wall disposed inside of the inner tank.

[0025] The inner wall is coupled to the inner tank, and the outer wall is disposed to be spaced apart from a circumferential wall of the inner tank.

[0026] A water tank sealer is disposed on an outer circumferential surface of the outer wall, and the water tank sealer protrudes outward from the outer circumferential surface of the outer wall.

[0027] In order to achieve the object, a humidifier according to an embodiment of the present disclosure includes: an inner tank forming a space for storing water and including a bottom wall having a bottom hole; and a connector penetrating the bottom hole and connected to the inner tank. A bottom hole penetrated by the connector is formed on the bottom wall.

[0028] A groove protruding upward is formed on the bottom wall of the inner tank. The groove is formed to be symmetric to each other around the bottom hole in a circumferential direction.

[0029] In the groove, a concave portion and a convex portion are continuously formed. Specific details of other embodiments are included in the detailed description and drawings.

[0030] The humidifier of the present disclosure has one or more of the following effects. First, a bottom surface of the water tank has various forming shapes, and there is an advantage in that the shape is not easily deformed even by impact or load.

[0031] Second, the impact can be relieved by a structural shape of a handle even at an upper end portion of the water tank. Therefore, there is an advantage in that the upper end portion of the water tank is not also easily deformed in shape by the impact.

[0032] Third, there is also an advantage in that a coupling relationship between the water tank and other components can be continuously maintained.

[0033] The effects of the present disclosure are not limited to the above-mentioned effects, and other effects that are not mentioned may be obviously understood by those skilled in the art from the claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG. 1 is a perspective view of a humidifier according to an embodiment of the present disclosure.

[0035] FIG. 2 is a plan view of FIG. 1.

[0036] FIG. 3 is a cross-sectional view taken along line III-III′ of FIG. 2.

[0037] FIG. 4 is an exploded perspective view of an inner tank and an outer tank according to an embodiment of the present disclosure.

[0038] FIG. 5 is an exploded perspective view of the inner tank, a water softener, and a connector according to an embodiment of the present disclosure.

[0039] FIG. 6 is a one-side cross-sectional view of the inner tank to which the connector is connected according to an embodiment of the present disclosure.

[0040] FIG. 7 is a one-side cross-sectional view of a handle according to an embodiment of the present disclosure.

[0041] FIG. 8 is a bottom perspective view of the inner tank according to a first embodiment of the present disclosure.

[0042] FIG. 9 is a bottom view of the inner tank according to a first embodiment of the present disclosure.

[0043] FIG. 10 is a bottom view of the inner tank according to a second embodiment of the present disclosure.

[0044] FIG. 11 is a bottom view of the inner tank according to a third embodiment of the present disclosure.

[0045] FIG. 12 is a bottom view of the inner tank according to a fourth embodiment of the present disclosure.

[0046] FIG. 13 is a bottom view of the inner tank according to a fifth embodiment of the present disclosure.

[0047] FIG. 14 is a bottom view of the inner tank according to a sixth embodiment of the present disclosure.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0048] Advantages and features of the present disclosure and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and these embodiments are provided only to allow the disclosure of the present disclosure to be complete, and to completely inform those of ordinary skill in the art to which the present disclosure belongs, the scope of the invention, and the present disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

[0049] Hereinafter, the present disclosure will be described with reference to the drawings for explaining a humidifier according to embodiments of the present disclosure. The humidifier of the present disclosure may generate humidified air by ultrasonic vibration of water. The humidifier of the present disclosure may generate humidified air by heating water. The humidifier of the present disclosure may generate humidified air generated by ultrasonic vibration and humidified air generated by heating.

[0050] Referring to FIG. 1, an exterior of the humidifier of the present disclosure is described.

[0051] The humidifier includes a casing 10 that forms the appearance, and has an inlet 24a and an outlet 12a.

[0052] The casing 10 may have a generally cylindrical shape.

[0053] The casing 10 may include an intake grille 24 that forms the inlet 24a through which air enters, and a discharge grille 12 that forms the outlet 12a through which air is discharged. The inlet 24a may be formed on a peripheral surface of the casing 10 having the cylindrical shape. The outlet 12a may be formed on a top surface of the casing 10 having the cylindrical shape. The humidifier of the present disclosure may allow air into be admitted through the peripheral surface and be discharged through the top surface.

[0054] The intake grille 24 includes a plurality of grilles 24b that extend vertically. The plurality of grilles 24b may be spaced apart in a circumferential direction of the intake grille 24. A plurality of inlets 24a may be formed between the plurality of grilles 24b.

[0055] The casing 10 may include a water tank cover 14 placed on a top of a water tank 100.

[0056] The humidifier may include a discharge grille 12 that forms the outlet 12a and a water tank cover 14 which is placed on the top of the water tank 100.

[0057] The discharge grille 12 may be configured to be separated upward from an outer shell 22 to be described later. The water tank cover 14 may be configured to be separated from the discharge grille 12 or from the water tank 100 to be described later.

[0058] The discharge grille 12 may include a plurality of ribs 12b that extend radially from the outer circumference of the water tank cover 14. The plurality of ribs 12b placed at the discharge grille 12 may be spaced apart circumferentially from the outer circumference of the water tank cover 14.

[0059] The casing 10 may include the outer shell 22 that guides air moving therein to the outlet 12a.

[0060] The outer shell 22 includes an upper outer shell 22a placed under the discharge grille 12 and a lower outer shell 22b placed under the upper outer shell 22a. The lower outer shell 22b may be made of a transparent material.

[0061] The humidifier may include a base 28 placed under the casing 10, which causes the casing 10 to be spaced a certain distance apart from the ground. An upper end of the base 28 may be connected to a lower end of the casing 10.

[0062] Hereinafter, a top portion of the humidifier will be described with reference to FIG. 2.

[0063] The water tank cover 14 may include a central cover 16 and a peripheral cover 18 placed around the central cover 16. The central cover 16 may bulge upward toward the center. A water supply hole 20 may be formed between the peripheral cover 18 and the central cover 16 to allow water to move into the water tank 100.

[0064] A plurality of outlets 12a may be placed between the plurality of ribs 12b formed at the discharge grille 12.

[0065] Hereinafter, an internal construction of the humidifier will be described with reference to FIG. 3.

[0066] The humidifier includes a filter unit placed inside the casing 10, for filtering the air admitted into the inlets 24a. The humidifier includes a blower 60 placed inside the casing 10, for moving the air inside the casing 10 from the inlets 24a to the outlets 12a. The humidifier includes a water tank 100 placed inside the casing 10, for holding water. The humidifier includes a humidification module that generates humidified air from water supplied from the water tank 100.

[0067] The humidifier may include a base 28. The base 28 may cause the casing 10 to be spaced upward from the ground. The base 28 may be connected to a bottom wall 26 of the casing 10.

[0068] The casing 10 may include a bottom wall 26 which covers the bottom of the intake grille 24.

[0069] An upper end portion of the base 28 may be connected to the bottom wall 26. The bottom wall 26 may be placed in such a way as to cover a bottom surface of the humidifier which is spaced upward from the ground by the base 28.

[0070] The intake grille 24 may cover the outsides of a filter 50 and a blower housing 68 to be described below. The intake grille 24 may have a plurality of inlets 24a that are vertically formed and circumferentially spaced apart. The inlets 24a may be formed around where the filter 50 is placed. The inlets 24a may be formed in a lower portion of the intake grille 24. The lower portion of the intake grille 24 may be formed with inlets 24a, and a top portion of the intake grille 24 may be enclosed to protect the internal construction of the humidifier.

[0071] The outer shell 22 may be placed over the intake grille 24.

[0072] The filter unit may allow the air admitted through the inlets 24a to be filtered through the filter 50. The filter unit may allow the filtered air to move upward.

[0073] The filter unit includes a filter 50 for filtering the air admitted through the inlets 24a and a filter mounting portion for fixing the filter 50 in place inside the casing 10.

[0074] The filter 50 may have the cylindrical shape. Accordingly, the filter 50 is able to filter air drawn in from longitudinal and lateral directions perpendicular to the vertical direction. The air admitted through the inlets 24a may move to an inside space of the filter 50. The air passed through the filter 50 may move to the blower 60 placed over the filter 50.

[0075] The filter mounting portion includes a lower plate 52 placed on a lower side of the filter 50, an upper plate 54 placed on an upper side of the filter 50, and a supporter (not illustrated) connecting the lower plate 52 and the upper plate 54.

[0076] The lower plate 52 is placed on a lower side of the filter 50. The lower plate 52 may move up and down and detect whether the filter 50 is placed. A fan sterilizer 53 may be placed in the center of the lower plate 52 to emit ultraviolet light upward.

[0077] The fan sterilizer 53 may sterilize a blower fan 62 to be described below or the inside of the filter 50.

[0078] An orifice 56 is formed in the upper plate 54. The orifice 56 may be formed in the center of the upper plate 54. The orifice 56 may allow the air admitted to the inside of the filter 50 to move to the blower fan 62. An inner circumferential end of the upper plate 54 may be bent upward so as to guide the upward movement of air in the inside space of the filter 50 to the blower fan 62.

[0079] The supporter 58 may connect the lower plate 52 and the upper plate 54. The supporter 58 may be circumferentially spaced apart.

[0080] The blower 60 includes a blower fan 62 that forms an air flow within the casing 10 and a fan motor 64 that rotates the blower fan 62.

[0081] The blower fan 62 may have a fan intake opening on one side facing the orifice 56 and a fan discharge opening on the opposite side of the fan intake opening. The blower fan 62 may be a diagonal flow fan in which the fan discharge opening on the opposite side of the fan intake opening faces in a centrifugal direction. The blower fan 62 may include a hub connected to the fan motor 64, a shroud spaced apart from the hub by a certain distance and forming the fan intake opening, and a blade extending radially to connect the hub and the shroud.

[0082] The blower fan 62 may be activated to send air upward from below. The blower fan 62 may draw air toward the orifice 56 and discharge air to the blower housing 68 where a diffuser 72 is placed.

[0083] The fan motor 64 may be placed over the blower fan 62.

[0084] The blower includes a motor cover 66 that covers the outside of the fan motor 64, and a blower housing 68 spaced radially outward from the motor cover 66, that guides the upward movement of air blown by the blower fan 62.

[0085] A blower channel 70 through which the air moving by the blower fan 62 moves upward may be formed between the motor cover 66 and the blower housing 68. The blower channel 70 may extend to a region where a humidification module housing 410 and a channel housing 430 are formed.

[0086] The intake grille 24 may be placed on the outside of the blower housing 68.

[0087] The blower 60 includes a diffuser 72 placed between the motor cover 66 and the blower housing 68, that reduces rotational components of the air blown upward by the blower fan 62.. A plurality of diffusers 72 may be circumferentially spaced apart.

[0088] A control box 74 forming a space within which a circuit board 76 is placed may be placed over the motor cover 66. The control box 74 may be spaced apart inwardly from the blower housing 68. Accordingly, the blower channel 70 may be formed in the space between the control box 74 and the blower housing 68 as well.

[0089] A plurality of circuit boards 76 may be placed inside the control box 74. The humidification module includes a first humidification water tank 300 that heats water. The humidification module includes a second humidification water tank 350 that generates humidified air from water. The humidification module may include the humidification module housing 410 that covers peripheries of the first humidification water tank 300 and the second humidification water tank 350. The channel housing 430 may be placed on an outer circumference of the humidification module housing 410. The blower channel 70 may be formed between the humidification module housing 410 and the channel housing 430. The humidifier includes a water tank 100 forming a space in which water is held, an inner shell 180 forming a space in which the water tank 100 is placed, and a middle tray 200 placed under the inner shell 180.

[0090] The water tank 100 may have an inner tank 102 is placed inside an outer tank 160. Accordingly, a connector 120 may be placed in a through-hole 164 of the outer tank 160. The outer tank 160, while placed inside the inner shell 180, may be placed over the middle tray 200. The middle tray 200 may be a structure that supports the outer tank 160 and the inner tank 102. Thus, the weights of the inner tank 102, the outer tank 160, and the inner shell 180 may be transferred to the middle tray 200.

[0091] The outer tank 160 is placed on the outer circumference of the inner tank 10.

[0092] The inner tank 102 may be placed inside the outer tank 160. When the inner tank 102 is placed inside the outer tank 160, an outer circumferential surface of the inner tank 102 may be placed in such a way as to make contact with an inner peripheral surface of the outer tank 160.

[0093] The humidifier includes a water softener 140 placed within the inner tank 102. The water softener 140 is placed inside the inner tank 102. The water softener 140 may be fixed in place as it is connected to the connector 120 placed inside the inner tank 102. The inner shell 180 is placed to be spaced apart from the outer tank 160. The inner shell 180 is placed to be spaced apart from the water tank 100. A first discharge passage 32 along which humidified air moves is formed between the inner shell 180 and the outer tank 160.

[0094] A second discharge passage 34 is formed between the outer shell 22 and the inner shell 180.

[0095] The inner shell 180 and the outer shell 22 are placed to be spaced apart from each other and form the second discharge passage 34. Filtered clean air blown by the blower 60 may move along the second discharge passage 34.

[0096] The discharge grille 12 may be placed over the first discharge passage 32 and the second discharge passage 34 which will be described below.

[0097] The discharge grille 12 may have a vertically constant height. Thus, a mixture passage 13 may be formed between the plurality of ribs12b of the discharge grille 12. In the mixture passage 13, the air moving through the first discharge passage 32 and the air moving through the second discharge passage 34 may be mixed together.

[0098] Each of the plurality of ribs 12b is formed in such a way that an outer circumferential end is placed higher than an inner circumferential end. Thus, the air moving through the first discharge passage 32 and the second discharge passage 34 may be guided radially inwardly.

[0099] A display 30 is placed at one side of the casing 10. The display 30 may allow a user to adjust a power or an operation of the humidifier. A display for displaying an operation state of the humidifier to the user may be placed in the display 30.

[0100] The inner tank, the outer tank, and the connector will be described with reference to FIG. 4.

[0101] The water tank 100 includes an inner tank 102, and an outer tank 160 placed outside the inner tank. The inner tank 102 has a space in which water is held therein. The outer tank 160 has a space for accommodating the inner tank 102 therein.

[0102] A water tank sealer 115 is placed at an upper end portion of the inner tank 102. The water tank sealer 115 is placed on an outer circumferential surface of the inner tank 102 and placed to be in contact with an inner peripheral surface of the outer tank 160.

[0103] A through-hole 164 through which the connector 120 passes is formed on a bottom surface of the outer tank 160.

[0104] The outer tank 160 includes a lower rim 166 protruding downward on the bottom surface. The lower rim 166 has a structure of protruding downward on a periphery of the through-hole 164. The lower rim 166 may have a ring-shaped structure.

[0105] The inner tank 102 includes an inner tank body 104 that forms a space in which water is held, and a handle 108 placed at an upper side of the inner tank body 104.

[0106] The humidifier includes a connector 120 that is fixedly placed in the inner tank 102, and connects the inner tank 102 and the supply tube 230. Some components of the connector 120 are placed inside the inner tank 102. The remaining components of the connector 120 are placed outside the inner tank 102.

[0107] The connector 120 may send the water held in the inner tank 102 to the humidification module. The connector 120 may send the water held in the inner tank 102 to the humidification module through the supply tube 230.

[0108] A connector holder 132 of the connector 120, and a part of a connector valve 130 may be placed outside the inner tank 102. Each of the connector holder 132 and the connector valve 130 may be connected to an inlet port 232 of the supply tube 230.

[0109] The connector holder 132, and a part of the connector valve 130 may protrude to a lower side of the outer tank 160 through the through-hole 164 of the outer tank 160.

[0110] When the inner tank 102 is accommodated in the outer tank 160, the connector holder 132 and a part of the connector valve 130 may be placed at the lower side of the outer tank 160.

[0111] When the inner tank 102 is accommodated in the outer tank 160, a bottom wall 104a of the inner tank 102 may be placed to be in contact with a bottom wall 160a of the outer tank 160.

[0112] The inner tank, the water softener, and the connector will be described with reference to FIG. 5.

[0113] A bottom hole 106 though which some components of the connector 120 pass is formed on a bottom surface of the inner tank 102.

[0114] The bottom surface of the inner tank 102 may have a formed shape for strength reinforcement.

[0115] A packing 114 may be placed on a periphery of the bottom hole 106 of the inner tank 102. The packing 114 may bring the connector 120 into close contact with the inner tank 102.

[0116] The humidifier includes a water softener 140 placed inside the inner tank 102, and a connector 120 placed under the water softener 140 and being in close contact with the inner tank 102.

[0117] The water softener 140 is placed inside the inner tank 102. Therefore, ions in water that are held in an internal space of the inner tank 102 and move to the humidification module may be removed.

[0118] The water softener 140 may have holes in which water moves on a top surface and a bottom surface, respectively.

[0119] The connector 120 is placed under the water softener 140. The connector 120 may have a structure of being coupled to the water softener 140.

[0120] The connector 120 includes a connector body 121 placed so as to pass through the bottom hole 106 of the inner tank body 104, a connector holder 132 coupled to the connector body 121 to fix placement of the connector body 121, and a connector valve 130 placed at an inner side of the connector body 121 and configured to open and close an internal passage of the connector body 121.

[0121] The connector body 121 includes a connector plate 122 placed under the water softener 140, and a connector pipe 128 extending to a lower side of the connector plate 122. The connector plate 122 is placed at an inner side of the inner tank body 104. The connector pipe 128 is placed to pass through the bottom hole 106 of the inner tank body 104 and has an internal passage 128a (see FIG. 6) at an inner side thereof.

[0122] The connector plate 122 is placed over the bottom surface of the inner tank body 104. The connector plate 122 may have a structure that is in contact with a lower portion of the water softener 140 to fix the placement of the water softener 140.

[0123] A coupling structure of the inner tank, the water softener, and the connector will be described with reference to FIG. 6.

[0124] The water softener 140 is placed inside the inner tank 102. Some components of the connector 120 are placed inside the inner tank 102. Some other components of the connector 120 are placed to protrude to the outside of the inner tank 102.

[0125] The handle 108 is placed at an upper end portion of the inner tank 102. The upper end portion of the inner tank 102 has a structure of being fitted to the handle 108.

[0126] The handle 108 includes a handle fixing portion 112 connected to the inner tank 102 and a handle bar 110 crossing the handle fixing portion 112.

[0127] The water tank sealer 115 which is in contact with the outer tank is placed on an outer circumferential surface of the handle fixing portion 112.

[0128] A packing 114 is placed at a lower end portion of the inner tank 102. The packing 114 is in contact with the connector 120. The packing 114 may prevent the water in the inner tank 102 from moving through the outside of the connector 120.

[0129] The packing 114 may be placed to be in contact with a bottom portion of the connector plate 122. The packing 114 may be placed to be in contact with an outer circumferential surface of a lower protrusion portion 123 of the connector 120.

[0130] An upper sealer 127a of the connector 120 is in contact with the bottom surface of the water softener 140. The upper sealer 127a of the connector 120 is placed to be in contact with a lower projection 148 of the water softener 140. Accordingly, water moving down through a housing hole formed on the bottom surface of the water softener 140 may be prevented from moving to the outside of the lower projection 148.

[0131] The upper sealer 127a of the connector 120 may be placed to be in contact with the bottom surface or the lower projection 148 of the water softener 140.

[0132] The upper sealer 127a allows water passing through the water softener 140 to move through the connector pipe 128 to the supply tube 230. The upper sealer 127a allows the water passing through the water softener 140 to move to the outside of the inner tank 102.

[0133] A lower sealer 127b of the connector 120 is placed to be in contact with the bottom surface of the inner tank 102. The lower sealer 127b may prevent water that has not passed through the water softener 140 from moving to the outside of the inner tank 102.

[0134] A connection space 153a is formed between the water softener 140 and the connector 120. The connection space 153a connects the water softener 140 and an internal passage 128a of the connector pipe 128.

[0135] Peripheral spaces 154a and 154b may be formed between the connector 120 and the inner tank 102. An upper peripheral space 154a may be formed between the connector 120 and a peripheral surface of the inner tank 102. A lower peripheral space 154b may be formed between the connector 120 and the bottom surface of the inner tank 102.

[0136] The upper sealer 127a seals between the connection space 153a and the upper peripheral space 154a. The lower sealer 127b seals between the upper peripheral space 154a and the lower peripheral space 154b.

[0137] The packing 114 seals the lower peripheral space 154b and the outside of the inner tank 102.

[0138] A structure of the handle will be described with reference to FIG. 7.

[0139] The handle 108 includes a handle fixing portion 112 fixed to the upper end of the inner tank 102, and a handle bar 110 connecting one side and the other side of the handle fixing portion 112.

[0140] The handle fixing portion 112 includes an outer wall 102 placed an outer side of the inner tank 102, and an inner wall 112b placed at an inner side of the inner tank 102.

[0141] An upper groove 112c into which the upper end portion of the inner tank 102 is inserted is formed between the outer wall 112a and the inner wall 112b. The outer wall 112a is placed to be spaced apart from a circumferential wall formed by the inner tank 102.

[0142] A sealer groove 112a1 in which the water tank sealer 115 is placed is formed on an outer circumferential surface of the outer wall 112a.

[0143] The sealing portion 118c may have a shape of being convex outward.

[0144] The sealing portion 118c may be placed to be in contact with an inner peripheral surface of the outer tank 160.

[0145] The water tank sealer 115 may be made of a rubber material whose shape is deformed. Accordingly, when the sealing portion 118c is in contact with the outer tank 160, the shape of the sealing portion 118c may be deformed.

[0146] The handle bar 110 is placed on one side of the top surface 113 of the handle fixing portion 112.

[0147] The top surface 113 of the handle fixing portion 112 includes an outer top surface 113a that connects an upper end of the outer wall 112a and an upper end of the inner wall 112b, and an inner top surface 113b that is placed on an inner side of the outer top surface 133a and forms an inclined surface downward toward the inner side.

[0148] The outer top surface 113a is placed over the inner tank body 104. The upper groove 112c is formed under the outer top surface 113a.

[0149] The handle bar 110 may be placed on the inner top surface 113b.

[0150] A bottom wall of the inner tank according to a first embodiment will be described with reference to FIGS. 8 and 9.

[0151] The inner tank 102 includes a circumferential wall 104b, and a bottom wall 104a placed on a bottom surface of the circumferential wall 104b. The inner tank 102 includes a connection wall 104c connecting the circumferential wall 104b and the bottom wall 104a. The connecting wall 104c may have a bent shape.

[0152] A bottom hole 106 is formed in the bottom wall 104a of the inner tank 102. The bottom wall 104a of the inner tank 102 may form a flat surface as a whole. The bottom wall 104a extends inward from an inner end of the connection wall 104c.

[0153] The bottom wall 104a forms an inner circumferential end 105a at a portion where the bottom hole 106 is formed, and forms an outer circumferential end 105b at a portion where the bottom wall 104a meets the connection wall 104c.

[0154] A first groove 116 that bulges upward in a ring shape is formed on the bottom wall 104a of the inner tank 102. The first groove 116 is placed to be spaced apart from the bottom hole 106 of the bottom wall 104a in a radial direction. The first groove 116 is concentric with the bottom hole 106.

[0155] The first groove 116 is placed to be closer to the outer circumferential end 105b than to the inner circumferential end 105a of the bottom wall 104a.

[0156] A plurality of second grooves 118 intersecting the first groove 116 and having a radial structure are formed on the bottom surface of the inner tank 102.

[0157] Each of the plurality of second grooves 118 is connected to the first groove 116. Each of the plurality of second grooves 118 extends inward from the first groove 116. Here, the inward may be a direction toward a center of the bottom wall 104a.

[0158] A radial length 118L of the second groove 118 is formed to be longer than a length L1 of the second groove 114 which is spaced apart from the inner circumferential end 105a of the bottom wall 104a. The radial length 118L of the second groove 118 is formed to be longer than a width 116W of the first groove 116.

[0159] An inclination angle θ formed by the second grooves 118 adjacent to each other may be formed in a range between 30 degrees and 45 degrees.

[0160] In the inner tank according to the first embodiment, the inclination angle formed by the second grooves 118 adjacent to each other may be 45 degrees.

[0161] Accordingly, the plurality of second grooves 118 may consist of a total of eight. A width 118W of each of the plurality of second grooves 118 is formed to be equal to or larger than the width 116W of the first groove 116.

[0162] Each of the plurality of second grooves 118 is placed to be spaced apart from the inner circumferential end 105a of the bottom wall 104a in the radial direction.

[0163] Each of the plurality of second grooves 118 is placed to be spaced apart from the inner circumferential end 105a of the bottom wall 104a in the radial direction.

[0164] A groove that bulges upward is formed on the bottom wall 104a of the inner tank 102. The groove 115 may be a structure including the first groove 116 and the second groove 118 described above.

[0165] The grooves 115 are formed to be symmetric to each other around the bottom hole 106 in a circumferential direction. The grooves 115 may have a structure in which the grooves 115 continue to be continuous in the circumferential direction around the bottom hole 106.

[0166] In the groove 115, a concave portion 115a and a convex portion 115b are continuously formed. The concave portion 115a is a structure in which a groove is formed in a direction away from a center with respect to the radial direction. Further, the convex portion 115b is a structure in which a protrusion portion is formed in a direction closer to the center with respect to the radial direction.

[0167] A bottom wall of the inner tank according to a second embodiment will be described with reference to FIG. 10.

[0168] The bottom wall is described based on a difference from the bottom wall according to the first embodiment.

[0169] A third groove 119 spaced apart from the first groove 116 in the radial direction is formed on the bottom wall 104a of the inner tank 102 according to the second embodiment. The third groove 119 is placed to intersect the plurality of second grooves 118.

[0170] The third groove 119 is concentric with the first groove 116. The third groove 119 is formed on the inner circumferential end 105a of the bottom wall 104a.

[0171] The plurality of second groove 118 are formed between the first groove 116 and the third groove 119.

[0172] The packing 114 (see FIG. 6) is placed in the third groove 119.

[0173] A bottom wall of the inner tank according to a third embodiment will be described with reference to FIG. 11.

[0174] The bottom wall is described based on a difference from the bottom wall according to the first embodiment.

[0175] The bottom wall 104a of the inner tank 102 according to the third embodiment includes the first groove 116 and the plurality of second grooves 118.

[0176] Each of the plurality of second grooves 118 includes a second-1 groove 118a extending inward from the first groove 116 and a second-2 groove 118b extending outward from the first groove 116.

[0177] A radial length 118aL of the second-1 groove 118a is formed to be longer than a radial length 118bL of the second-2 groove 118b. The radial length 118aL of the second-1 groove 118a is formed to be at least twice as long as the radial length 118bL of the second-2 groove 118b.

[0178] The radial length 118aL of the second-1 groove 118a is formed to be longer than the width 118W of the first groove 116.

[0179] The second-1 groove 118a is spaced apart from the inner circumferential end 105a of the bottom wall 104a. The second-2 groove 118b is spaced apart from the outer circumferential end 105b of the bottom wall 104a.

[0180] A length L1 of the second-1 groove 118a which is spaced apart from the inner circumferential end 105a of the bottom wall 104a is formed to be shorter than the radial length 118bL of the second-2 groove 118b.

[0181] A bottom wall of the inner tank according to a fourth embodiment will be described with reference to FIG. 12.

[0182] The bottom wall is described based on a difference from the bottom wall according to the third embodiment.

[0183] A third groove 119 spaced apart from the first groove 116 in the radial direction is formed on the bottom wall 104a of the inner tank 102 according to the second embodiment. The third groove 119 is placed to intersect the plurality of second-1 grooves 118a.

[0184] The third groove 119 is concentric with the first groove 116. The third groove 119 is formed on the inner circumferential end of the bottom wall 104a.

[0185] The plurality of second-1 grooves 118a are formed between the first groove 116 and the third groove 119.

[0186] The packing 114 is placed in the third groove 119.

[0187] A bottom wall of the inner tank according to a fifth embodiment will be described with reference to FIG. 13.

[0188] The bottom wall is described based on a difference from the bottom wall according to the first embodiment.

[0189] Each of the plurality of second grooves 118 extends inward in the radial direction from the first groove 116.

[0190] A radial length 118L of the second groove 118 is formed to be longer than the length L1 of the second groove 114 which is spaced apart from the inner circumferential end 105a of the bottom wall 104a. The radial length 118L of the second groove 118 is formed to be longer than a width 116W of the first groove 116.

[0191] An inclination angle θ formed by the second grooves 118 adjacent to each other may be formed in a range between 30 degrees and 45 degrees.

[0192] In the inner tank according to the fifth embodiment, the inclination angle θ formed by the second grooves 118 adjacent to each other may be 30 degrees.

[0193] Accordingly, the plurality of second grooves 118 may consist of a total of 12. A width 118W of each of the plurality of second grooves 118 is formed to be equal to or smaller than the width 116W of the first groove 116.

[0194] Each of the plurality of second grooves 118 is placed spaced apart from the inner circumferential end 105a of the bottom wall 104a in the radial direction.

[0195] A bottom wall of the inner tank according to a sixth embodiment will be described with reference to FIG. 14.

[0196] The bottom wall is described based on a difference from the bottom wall according to the fifth embodiment.

[0197] A third groove 119 spaced apart from the first groove 116 in the radial direction is formed on the bottom wall 104a of the inner tank 102 according to the sixth embodiment. The third groove 119 is placed to intersect the plurality of second grooves 118.

[0198] The third groove 119 is concentric with the first groove 116. The third groove 119 is formed on the inner circumferential end of the bottom wall 104a.

[0199] The plurality of second groove 118 are formed between the first groove 116 and the third groove 119.The Packing 114 Is Placed in the Third Groove 119.

[0200] Throughout the document, preferred embodiments of the present disclosure have been described with reference to appended drawings; however, the present disclosure is not limited to the embodiments above. Rather, it should be noted that various modifications of the present disclosure may be made by those skilled in the art to which the present disclosure belongs without leaving the technical scope of the present disclosure defined by the appended claims, and these modifications should not be understood individually from the technical principles or perspectives of the present disclosure.

Claims

1. A humidifier comprising:an inner tank forming a space for storing water and including a bottom wall having a bottom hole; anda connector penetrating the bottom hole and connected to the inner tank,wherein a bottom hole penetrated by the connector is formed on the bottom wall, andwherein the bottom wall of the inner tank has a first groove spaced apart from the bottom hole in a radial direction and formed in a ring shape, and a plurality of second grooves extending radially to intersect the first groove.

2. The humidifier of claim 1, wherein the first groove and the plurality of second grooves protrude upward on the bottom wall.

3. The humidifier of claim 1, wherein each of the plurality of second grooves is spaced apart from the bottom hole.

4. The humidifier of claim 1, wherein a radial length of each of the plurality of second grooves is formed to be longer than a width of the first groove.

5. The humidifier of claim 1, wherein the plurality of second grooves consist of eight to twelve grooves.

6. The humidifier of claim 1, wherein the bottom wall of the inner tank has a third groove formed around the bottom hole.

7. The humidifier of claim 6, wherein the third groove intersects the plurality of second grooves.

8. The humidifier of claim 1, wherein each of the plurality of second grooves includes a second-1 groove extending inward in the radial direction from the first groove and a second-2 groove extending outward in the radial direction from the first groove.

9. The humidifier of claim 8, wherein a radial length of the second-1 groove is formed to be longer than a radial length of the second-2 groove.

10. The humidifier of claim 1, wherein the inner tank includesa circumferential wall extending upward from an outer circumferential end of the bottom wall, andan extension wall having a bent shape to connect the circumferential wall and the bottom wall, andwherein the first groove is placed closer to the outer circumferential end than to an inner circumferential end of the bottom wall.

11. The humidifier of claim 1, wherein a packing is disposed around the bottom hole in the bottom wall.

12. The humidifier of claim 11, wherein the connector includesa connector body disposed to penetrate the bottom hole, anda connector holder disposed outside the inner tank and coupled to the connector body, andwherein when the connector holder is coupled to the connector body, the packing is in contact with the connector body.

13. The humidifier of claim 1, wherein a handle is disposed at an upper end portion of the inner tank,wherein the handle includes a handle fixing portion connected to the inner tank, and a handle bar crossing the handle fixing portion, andwherein the handle fixing portion is disposed to cover an outer circumference of the inner tank.

14. The humidifier of claim 13, wherein the handle fixing portion includes an outer wall disposed outside the inner tank and an inner wall disposed inside the inner tank, andwherein the inner wall is coupled to the inner tank, and the outer wall is disposed to be spaced apart from a circumferential wall of the inner tank.

15. The humidifier of claim 14, wherein a water tank sealer is disposed on an outer circumferential surface of the outer wall, and the water tank sealer protrudes outward from the outer circumferential surface of the outer wall.

16. A humidifier comprising:an inner tank forming a space for storing water and including a bottom wall having a bottom hole; anda connector penetrating the bottom hole and connected to the inner tank,wherein a bottom hole penetrated by the connector is formed on the bottom wall,wherein a groove protruding upward is formed on the bottom wall of the inner tank, andwherein the groove is formed to be symmetric around the bottom hole in a circumferential direction.

17. The humidifier of claim 16, wherein the groove includes a concave portion and a convex portion are continuously formed.

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