Humidifier

Abstract

To provide a humidifier improved in operability during continuous drainage.SOLUTION: A humidifier includes: a water collection part 12 collecting dew condensation water dripping from a humidification part 5; and a water collection tank 13 storing the dew condensation water collected in the water collection part 12. The water collection part 12 includes: a drain pan 41 disposed below a heat sink 10; a drain pipe 42 as a water passage for introducing the water in the drain pan 41 to the water collection tank 13; a movable opening / closing valve 43 for opening / closing the drain pipe 42; and a holding part 44 holding a state where the opening / closing valve 43 is kept open. When the water collection tank 13 is taken out from a body case 1 and the opening / closing valve is moved until the holding part keeps the opening / closing valve 43 open, a drain hose part 46 for drainage becomes attachable / detachable to / from the drain pipe 42 via an opening 59 of the body case 1.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a dehumidifier. [Background technology]

[0002] Dehumidifiers used in living spaces to reduce humidity in the living spaces and the like are known. For example, Patent Document 1 describes a dehumidifier equipped with a dehumidifying unit configured with a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected in a ring shape. The dehumidifier has a water collection unit that collects condensation water dripping from the dehumidifying unit and a water collection tank that stores the condensation water collected in the water collection unit. The water collection unit includes a drain pan located below the heat absorber, a drain pipe that is a water channel that directs water in the drain pan to the water collection tank, and a movable on-off valve that opens and closes the drain pipe. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-161462 Summary of the Invention [Problem to be solved by the invention]

[0004] In the device described in Patent Document 1, to perform continuous drainage, the user must insert a drain hose into the drain pipe. When inserting the drain hose into the drain pipe, the user must open the on-off valve with one hand while inserting the drain hose with the other, which can make the operation cumbersome.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a dehumidifier that improves operability during continuous drainage. [Means for solving the problem]

[0006] In order to solve the above problems, a dehumidifier according to one aspect of the present disclosure includes a main body case having an air inlet and an air outlet, and the main body case is provided with a dehumidifying section that dehumidifies air, an air blowing section that blows air drawn in from the air inlet to the air outlet via the dehumidifying section, a water collecting section that collects condensation water dripping from the dehumidifying section, and a water collecting tank that stores the condensation water collected in the water collecting section, and the water collecting section has a drain pan arranged below the dehumidifying section, a drain pipe that is a water channel that guides water in the drain pan to the water collecting tank, a movable on-off valve that opens and closes the drain pipe, and a holding section that holds the on-off valve in an open state, and the water collecting tank is attached to the main body case. When attached to the main case, the on-off valve opens, and when the water collection tank is removed from the main case, the on-off valve closes. When the water collection tank is removed from the main case and the on-off valve is moved until the holding part holds the on-off valve in the open position, the drain hose part for draining water can be attached and detached to the drain pipe through the opening in the main case. When the drain hose part is removed from the drain pipe and the water collection tank is attached to the main case, the on-off valve opens the drain pipe, and when the water collection tank is removed from the main case, the on-off valve closes the drain pipe, thereby achieving the intended purpose. [Effects of the Invention]

[0007] According to the present disclosure, a dehumidifier with improved operability during continuous drainage can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view schematically illustrating a dehumidifying device according to an embodiment of the present disclosure. [Figure 2] FIG. 1 is a side cross-sectional view schematically showing the dehumidifying device. [Figure 3] FIG. 1 is a schematic diagram showing an air passage of the dehumidifier; [Figure 4] FIG. 10 is a diagram showing a schematic view of the air flow in the dehumidifier. [Figure 5] FIG. 3 is a perspective view showing the inside of the dehumidifier. [Figure 6]FIG. 1 is a cross-sectional view schematically showing the dehumidifying device. [Figure 7] FIG. 1 is a cross-sectional view schematically showing the dehumidifying device. [Figure 8] FIG. 1 is a cross-sectional view schematically showing the dehumidifying device. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. Each of the examples described below represents a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, the arrangement and connection of the components, steps (processes), and the order of steps shown in the following examples are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following examples, components that are not recited in the independent claims that represent the highest concept of the present disclosure will be described as optional components. Furthermore, in each figure, substantially identical components are assigned the same reference numerals, and redundant explanations will be omitted or simplified.

[0010] Furthermore, terms including ordinal numbers such as first and second are used to describe various components, but these terms are used only to distinguish one component from another and do not limit the components. [Example] The schematic configuration of a dehumidifier 100 according to an embodiment of the present disclosure will be described with reference to Figures 1 to 4. Figure 1 is a perspective view showing the dehumidifier 100 according to the embodiment. Figure 2 is a side cross-sectional view showing the cross section of the dehumidifier 100 taken along line AA in Figure 1.

[0011] 1, a dehumidifier 100 according to this embodiment has a box-shaped main body case 1 as an outer shell, which distinguishes the outside from the inside of the main body case 1. The main body case 1 is provided with an air inlet 2 and an air outlet 4.

[0012] As shown in FIG. 2, the dehumidifier 100 includes a heat absorber 10, a heat exchanger 11, a radiator 8, and a blower 6. The heat absorber 10, the heat exchanger 11, the radiator 8, and the blower 6 are arranged in this order in the front-to-back direction (from the front surface 22 side to the rear surface 23 side) in the main body case 1. In this specification, the directions of the device are defined as the directions when the dehumidifier is installed in a normal operable state. In the dehumidifier 100, the side on which the heat absorber 10 is arranged relative to the radiator 8 is referred to as the "front," the opposite side is referred to as the "rear," and the horizontal direction perpendicular to the front-to-back direction is referred to as the left-to-right direction.

[0013] A view from the front and back is sometimes referred to as a "front view" or "rear view," a view from the left and right is sometimes referred to as a "side view," and a view from above is sometimes referred to as a "plan view." The air flow generated by the action of the blower 6 is sometimes referred to as "wind," and the upstream and downstream of the air flow are sometimes referred to as "upwind" and "downwind." These notations do not limit the position in which the dehumidifier 100 is used, and the dehumidifier 100 can be used in any position.

[0014] In the embodiment, the front-to-back width of the main body case 1 is smaller than the left-to-right width, and the top-to-bottom width is larger than the left-to-right width. With respect to the main body case 1, the part that forms the front outer surface is referred to as the "front surface," the part that forms the outer surface opposite the front surface is referred to as the "rear surface," the parts that form the left and right outer surfaces are referred to as the "side surfaces," and the part that forms the upper outer surface is referred to as the "top surface."

[0015] The front side of the top surface of the main body case 1 is provided with a display for receiving input from the user, for example, and for displaying the user's actions. An operation unit 25 is provided for displaying information about the dehumidifier such as the operation mode and current humidity. In the front-rear direction, a heat absorber gap 15 is provided between the heat absorber 10 and the front surface 22, and a heat radiator gap 19 is provided between the heat radiator 8 and the heat exchanger 11.

[0016] In the embodiment, the air inlet 2 is arranged on the side surface 21 of the main body case 1. The air inlet 2 is a rectangular opening in the side surface 21 of the main body case 1 that draws in air from a direction perpendicular to the side surface 21, and is provided with a lattice. In the embodiment, the air outlet 4 is arranged on the upper rear side of the main body case 1. Above the air outlet 4, a louver 31 is provided that changes the direction of the air blown out from the air outlet 4.

[0017] Blower 6 includes motor 32 and fan 33 connected to the rotating shaft of motor 32 for drawing in and exhausting air. Blower 6 has air intake port 68, which is an opening provided on the surface facing radiator 8. Blower 6 draws in air that has passed through dehumidifier 5 through air intake port 68 and blows it out of blower 6. In this way, blower 6 draws in air outside main body case 1 through air intake port 2, passes it through dehumidifier 5, and then blows it out of main body case 1 through air outlet 4. The passage for this air is air passage 34.

[0018] If the air inlet 2 is located on the opposite side of the heat absorber 10 from the air inlet 68 of the blower 6, the air from the first portion 61 will be biased toward the center of the heat absorber 10, making it difficult for condensation to form around the heat absorber 10 and the radiator 8, and reducing dehumidification capacity. For this reason, the air inlet 2 is provided on each of the two side surface portions 21 on the left and right of the main body case 1. In this case, the bias in the air flowing into the heat absorber 10 is evened out, and by directing the air over the entire heat absorber 10, the condensation area is increased, thereby improving dehumidification capacity.

[0019] 2, an air passage 34, a blower 6, and a dehumidifying section 5 are arranged inside the main body case 1 of the dehumidifier 100. The air passage 34 communicates with the air inlet 2 and the air outlet 4, and by the action of the blower 6, intake air 60 is drawn into the main body case 1 from the air inlet 2, passes through the air passage 34, and is blown out from the air outlet 4.

[0020] Fig. 3 is a diagram schematically showing the air passage 34 of the dehumidifier 100. Intake air 60 is divided into a first portion 61, a second portion 62, and a third portion 63, each of which is part of the intake air 60, within the main body case 1. Fig. 4 is a diagram showing the flows of the first portion 61, the second portion 62, and the third portion 63 superimposed on a cross-sectional view.

[0021] In this embodiment, air passage 34 is made up of a plurality of dehumidification paths, namely, first dehumidification path 51, second dehumidification path 52, and third dehumidification path 53. The air flow path of first dehumidification path 51 is referred to as first air path 71, the air flow path of second dehumidification path 52 is referred to as second air path 72, and the air flow path of third dehumidification path 53 is referred to as third bypass air path 73. In other words, air passage 34 can be said to be made up of first air path 71, second air path 72, and third bypass air path 73.

[0022] The dehumidifying section 5 is configured with a refrigeration cycle in which a compressor 7, a radiator 8, an expander 9, and a heat absorber 10 are connected in this order in a ring shape. The refrigeration cycle uses, for example, an alternative refrigerant (HFC134a). The refrigerant pushed out from the compressor 7 flows from top to bottom inside the radiator 8 through refrigerant piping 80. For this reason, the temperature becomes higher the further up the radiator 8 goes. The refrigerant pushed out from the radiator 8 is supplied to the heat absorber 10 via the expander 9. The refrigerant supplied to the heat absorber 10 flows from bottom to top inside the heat absorber 10 and flows into the compressor 7 through refrigerant piping 83. The refrigeration cycle is well known, so a detailed description will be omitted.

[0023] In the main body case 1, a heat absorber 10 is provided on the air intake port 2 side, which is the upstream side of the air flow in the air passage 34, and a heat radiator 8 is provided on the air outlet 4 side, which is the downstream side of the air flow in the air passage 34. A sensible heat type heat exchanger 11 is disposed in the space between the heat absorber 10 and the heat radiator 8. In other words, the heat absorber 10, the heat exchanger 11, and the heat radiator 8 are disposed in this order from the upstream side to the downstream side of the air flow in the air passage 34.

[0024] As shown in FIG. 2, the heat exchanger 11 has a horizontal first passage 17 through which a first portion 61 of the intake air 60 passes, and a vertical second passage 18 through which a second portion 62 of the intake air 60 passes. The first passage 17 and the second passage 18 are air passage spaces independent of each other. There are no limitations on the configuration or shape of the heat exchanger 11. As an example, the heat exchanger 11 is formed by stacking a plurality of resin plates (not shown) so that the first passage 17 and the second passage 18 are formed therebetween. The heat exchanger 11 is configured to be able to exchange heat between the first portion 61 passing through the first passage 17 and the second portion 62 passing through the second passage 18. As an example, the heat exchanger 11 has a substantially rectangular parallelepiped shape.

[0025] A first portion 61 of the intake air 60 passes through the heat absorber 10, the first passage 17 of the heat exchanger 11, the radiator 8, and the blower 6, and is then blown out of the main body case 1 from the air outlet 4. The flow path of this first portion 61 is the above-mentioned first air passage 71. A second portion 62 of the intake air 60 passes through the second passage 18 of the heat exchanger 11, the radiator 8, and the blower 6, and is then blown out of the main body case 1 from the air outlet 4. The path of this second portion 62 is the above-mentioned second air passage 72.

[0026] The first portion 61 is first cooled by the heat absorber 10. At this time, condensation occurs on the first portion 61, generating condensed water. The condensed water drips downward and is collected in a funnel-shaped water collection section 12 arranged below the heat absorber 10 and the heat exchanger 11. The condensed water collected in the water collection section 12 flows into a water collection tank 13 arranged below the water collection section 12. The water collection tank 13 can be easily attached and detached from the main body case 1.

[0027] Due to heat exchange, the cooled first portion 61 flowing through the first passage 18 lowers the temperature of the second portion 62 flowing through the second passage 18. As a result, condensation also occurs in the second portion 62 that has not passed through the heat absorber 10, generating condensed water. The condensed water drips downward from the second passage 18, is collected in the funnel-shaped water collecting portion 12, and flows into the water collecting tank 13.

[0028] In the embodiment, the heat exchanger 11 is configured such that the airflow resistance of the second passage 18 is greater than the airflow resistance of the first passage 17. As a result, the amount of the second portion 62 flowing through the second passage 18 is less than the amount of the first portion 61 flowing through the first passage.

[0029] The dried first portion 61 after condensation is blown out of the main body case 1 through the air outlet 4. The dried second portion 62 after condensation is blown out of the main body case 1 through the air outlet 4 from the heat exchanger 11 via the radiator 8 and the blower 6. In this way, the dehumidifier 100 reduces the humidity in the surrounding space.

[0030] The operation of the dehumidifier 100 configured as described above will now be described. When the blower 6 is activated, intake air 60 is drawn into the main body case 1 through the air inlet 2 provided in the side surface portion 21. The intake air 60 is divided into a first portion 61, a second portion 62, and a third portion 63. The first portion 61 flows into the radiator 8 through the heat absorber 10 and the first passage 17 of the heat exchanger 11, and cools the radiator 8. The second portion 62 flows into the radiator 8 through the second passage 18 of the heat exchanger 11, and cools the radiator 8.

[0031] The third portion 63 flows into the heat radiator 8 through a third bypass air passage 73 that bypasses the heat absorber 10 and the heat exchanger 11, and cools the heat radiator 8. After cooling the heat radiator 8, the first portion 61, the second portion 62, and the third portion 63 are blown out of the main body case 1 from the air outlet 4 via the blower 6.

[0032] The first portion 61 and the second portion 62 of the intake air 60 are cooled by the heat absorber 10 and the heat exchanger 11 of the refrigeration cycle, and condense to dry the air. The dried first portion 61 and the second portion 62 are blown out from the air outlet 4, thereby reducing the humidity in the space around the dehumidifier 100. Note that the dehumidifying unit 5 only needs to be able to dehumidify the air, and may be, for example, a dehumidifying unit that uses an element that adsorbs moisture in the air.

[0033] Fig. 5 is a perspective view showing the inside of the dehumidifier. Fig. 6, Fig. 7 and Fig. 8 are horizontal cross-sectional views showing the dehumidifier in a schematic plan view.

[0034] As shown in FIGS. 4, 5, 6, 7, and 8, the water collecting section 12 has a drain pan 41, a drain pipe 42, an on-off valve 43, and a holding section 44.

[0035] Drain pan 41 is funnel-shaped and is disposed below heat absorber 10, heat exchanger 11, and radiator 8. A circular ring-shaped drain pipe 42 is provided at the bottom of drain pan 41. Condensed water dripping from heat absorber 10 and heat exchanger 11 drips into drain pan 41 and flows into drain pipe 42 at the bottom of drain pan 41.

[0036] Drain pipe 42 has a vertical pipe portion 42a extending vertically downward from drain pan 41 and a horizontal pipe portion 42b extending further horizontally, and the central axis of drain pipe 42 is L-shaped. An opening / closing valve 43 for opening and closing drain pipe 42 is provided at the tip of drain pipe 42 (the tip of horizontal pipe portion 42b).

[0037] The on-off valve 43 opens and closes the drain pipe 42. When the on-off valve 43 opens the drain pipe 42, condensed water that has dripped into the drain pan 41 flows into the water collection tank 13 through the drain pipe 42, and when the on-off valve 43 closes the drain pipe 42, the condensed water that has dripped into the drain pan 41 collects in the drain pan 41 and the drain pipe 42 and does not drip from the drain pipe 42. The on-off valve 43 is provided at the tip of the drain pipe 42 so as to be able to rotate laterally, and is always in contact with the tip of the drain pipe 42 by a spring portion (not shown), urging it in the direction of closing the drain pipe 42.

[0038] The holding unit 44 is configured so that the on-off valve 43 holds the drain pipe 42 in an open state. In other words, the holding unit 44 holds the on-off valve 43 with a predetermined distance between the tip of the drain pipe 42 and the on-off valve 43, allowing the drain hose unit 46 to be connected to the drain pipe 42. Note that connecting the drain hose unit 46 to the drain pipe 42 enables continuous drainage. When the drain hose unit 46 is connected to the drain pipe 42, condensation water dripping into the drain pan 41 flows into the drain hose unit 46 without flowing into the water collection tank 13. If the tip of the drain hose unit 46 is placed in the bathroom, continuous dehumidification operation can be performed without draining the water in the water collection tank 13.

[0039] Specifically, the opening / closing valve 43 has an approximately circular opening / closing part 47 that is rotatably mounted on the main body case 1 and opens and closes the opening of the drain pipe 42, a spring part (not shown) that biases the opening / closing part 47 in the direction of closing the drain pipe 42, and a cylindrical contact part 50 that extends from the opening / closing part 47.

[0040] The holding part 44 has a movable claw part 48 that catches on the opening / closing part 47 when the opening / closing part 47 is separated from the drain pipe 42 by a first predetermined distance and the drain pipe 42 is opened, and a spring part 49 that urges the claw part 48 in the direction in which it catches on the opening / closing part.

[0041] The water collection tank 13 has a first protrusion 55 and a second protrusion 56 on the top of the water collection tank 13 .

[0042] The first protrusion 55 protrudes upward from the top of the water collection tank 13, has a convex shape, and has a curved portion 57 that extends in the insertion direction of the water collection tank 13. When the water collection tank 13 is inserted horizontally into the main body case 1, the contact portion 50 extending from the opening / closing portion 47 comes into contact with the curved portion 57 and moves in the direction in which the contact portion 50 and the opening / closing portion 47 open (in the direction in which the opening / closing portion 47 moves away from the opening of the drain pipe 42).

[0043] The second projection 56 is convex and protrudes upward from the top of the water collection tank 13, and has a convex portion 58 that protrudes horizontally and vertically relative to the insertion direction of the water collection tank 13. When the water collection tank 13 is inserted horizontally into the main body case, the convex portion 58 of the second projection 56 of the water collection tank 13 comes into contact with the claw portion 48, and the on-off valve comes off from the claw portion 48.

[0044] When the water collection tank 13 is inserted horizontally into the main body case 1 without the drain hose portion 46 connected to the drain pipe 42, the first protrusion 55 of the water collection tank 13 comes into contact with the abutment portion 50 extending from the open-close part 47 during insertion, and when the water collection tank 13 is further inserted into the main body case 1, the abutment portion 50 extending from the open-close part 47 moves along the curved portion 57 of the first protrusion 55. The first protrusion 55 of the water collection tank 13 causes the abutment portion 50 and the open-close part 47 to move in an opening direction (a direction in which the open-close part 47 moves away from the opening of the drain pipe 42). When the installation of the water collection tank 13 is complete in the main body case 1, there is a predetermined distance between the open-close part 47 and the opening of the drain pipe 42, that is, the open-close part 47 is in an open state. From this state, when the water collection tank 13 is moved in the direction of removing it from the main body case 1, the first protrusion 55 and spring part of the water collection tank 13 cause the opening / closing part 47 to move in the closing direction (the direction in which the opening / closing part 47 approaches from the opening of the drain pipe 42), and when the water collection tank 13 is removed from the main body case 1, the opening / closing part 47 closes the opening of the drain pipe 42.

[0045] When the water collection tank 13 is removed from the main body case 1 and the on-off valve 43 is moved until the holding part 44 holds the on-off valve 43 in the open position, the drain hose part 46 for draining water can be attached and detached to the drain pipe through the opening 59 of the main body case 1. The opening 59 is an opening provided in the rear part 23 of the main body case 1, and has a shape larger than the outer shape of the drain hose part 46. The opening 59 has a lid (not shown) that can be freely opened and closed.

[0046] When the water collection tank 13 is inserted into the main body case 1 with the drain hose portion 46 attached to the drain pipe 42, a part of the water collection tank 13 comes into contact with the holding portion 44, the opening / closing portion 47 moves away from the claw portion 48 of the holding portion 44, and the opening / closing portion 47 is urged by the spring portion in the direction of closing the drain pipe 42 and comes into contact with the drain hose portion 46.

[0047] Specifically, when the water collection tank 13 is removed from the main body case 1, the opening / closing part 47 is moved a first predetermined distance from the drain pipe 42, hooked onto the claw part 48, and the drain hose part 46 is attached to the drain pipe 42, and the water collection tank 13 is then attached to the main body case 1, the second protrusion 56 of the water collection tank 13 comes into contact with the claw part 48, and the opening / closing valve 43 comes off the claw part 48 and comes into contact with the drain hose part 46.

[0048] In this state, when the drain hose portion 46 for draining water is removed from the drain pipe 42, the open / close portion 47 comes off the drain hose portion 46, and the contact portion 50 extending from the open / close portion 47 comes into contact with the first protrusion 55 of the water collection tank 13, leaving a predetermined distance between the open / close portion 47 and the opening of the drain pipe 42, i.e., the open / close portion 47 is in an open state. When the drain hose portion 46 is removed from the drain pipe 42 and the water collection tank 13 is attached to the main body case 1, the open / close valve 43 opens the drain pipe 42, and when the water collection tank 13 is removed from the main body case 1, the open / close valve 43 closes the drain pipe 42. As a result, there is no need to forget to remove the open / close valve 43 from the holder 44 after removing the drain hose portion 46 from the drain pipe 42. As a result, the collection tank 13 can be easily removed from the main body case 1. When the water tank 13 is removed, the on-off valve 43 closes the drain pipe 42, and when the water collection tank 13 is removed from the main body case 1, condensed water does not drip from the drain pipe 42.

[0049] Furthermore, when the water collection tank 13 is removed from the main body case 1, the on-off valve 43 is moved until the holding portion 44 holds it in the open position, and the water collection tank 13 is inserted into the main body case 1 without the drain hose portion 46 for drainage attached to the drain pipe 42, the second protrusion 56 of the water collection tank 13 comes into contact with the claw portion 48, and the on-off portion 47 comes out of contact with the claw portion 48. Here, the contact portion 50 extending from the on-off valve 43 comes into contact with the first protrusion 55 and moves away from the drain pipe 42 a second predetermined distance that is shorter than the first predetermined distance, opening the drain pipe 42. When the water collection tank 13 is removed from the main body case 1 in this state, the contact portion 50 extending from the first protrusion 55 of the water collection tank 13 moves away from the on-off valve 43, and the on-off valve 43 closes the drain pipe 42. As a result, even if the on-off valve 43 is moved until the holding portion 44 holds the on-off valve 43 in an open state and the drain hose portion 46 is not attached to the drain pipe 42, there is no risk of forgetting to detach the on-off valve 43 from the holding portion 44. As a result, when the water collection tank 13 is removed from the main body case 1, the on-off valve 43 closes the drain pipe 42, and condensed water will not drip from the drain pipe 42 when the water collection tank 13 is removed from the main body case 1. [Industrial Applicability]

[0050] It is expected to be used as a dehumidifier to remove humidity from the air in homes, offices, and other spaces. [Explanation of symbols]

[0051] 1 Main unit case 2 Air intake 4 Air outlet 5 Dehumidification section 6. Blower 7 Compressor 8 Heat sink 9. Expander 10 Heat absorber 11 Heat exchanger 12 Water catchment area 13 Water collection tank 15 Heat sink gap 17 1st aisle 18 2nd aisle 19 Heat sink gap 21 Side part 22 Front part 23 Rear part 25 Control section 31 Louver 32 motor 33 Fans 34 Air passage 41 Drain pan 42 Drain pipe 43 On-off valve 44 Holding part 42a Vertical pipe section 42b Horizontal pipe part 46 Drain hose 47 Opening / closing part 48 Claw part 49 Spring part 50 winning part 51 First dehumidification route 52 Second dehumidification route 53 Third dehumidification route 55 1st protrusion 56 2nd protrusion 57 Curved part 58 Convex part 59 Aperture 60 Intake air 61 Part 1 62 Part 2 63 Part 3 68 Air intake 71 1st wind path 72 2nd wind path 73 Third bypass air duct 80 Refrigerant piping 83 Refrigerant piping 100 Dehumidifier

Claims

1. a main body case having an air inlet and an air outlet, The main body case contains: a dehumidification unit that dehumidifies the air; a blower that blows air drawn in through the air inlet to the air outlet via the dehumidifier; a water collection section that collects condensation water dripping from the dehumidification section; a water collection tank that stores the condensation water collected in the water collection unit, The water collecting section is a drain pan disposed below the dehumidifying unit; a drain pipe that is a waterway that guides the water in the drain pan to the water collection tank; a movable on-off valve for opening and closing the drain pipe; a holding portion that holds the on-off valve in an open state, When the water collecting tank is attached to the main body case, the on-off valve opens, When the water collecting tank is removed from the main body case, the on-off valve closes, When the water collection tank is removed from the main body case and the on-off valve is moved until the holding portion holds the on-off valve in an open state, a drain hose portion for drainage can be attached and detached to the drain pipe through the opening of the main body case, When the drain hose portion is removed from the drain pipe and the water collection tank is attached to the main body case, the on-off valve opens the drain pipe, and when the water collection tank is removed from the main body case, the on-off valve closes the drain pipe.

2. When the water collection tank is inserted into the main body case with the drain hose portion attached to the drain pipe, The dehumidifying device according to claim 1 , wherein the water collection tank abuts against the on-off valve, the on-off valve is separated from the holding portion, and the on-off valve abuts against the hose portion.

3. The on-off valve is an opening / closing part that is rotatably provided on the main body case and that opens and closes the opening of the drain pipe; a spring portion that biases the opening / closing portion in a direction to close the drain pipe; a contact portion extending from the opening and closing portion, The holding portion is a movable claw portion that catches on the opening and closing portion when the opening and closing portion is separated from the drain pipe by a first predetermined distance to open the drain pipe; a spring portion that biases the claw portion in a direction in which the claw portion is caught on the opening / closing portion, When the water collecting tank is inserted into the main body case, a first protrusion of the water collecting tank comes into contact with the abutting portion of the on-off valve, and the on-off portion moves away from the drain pipe by a second predetermined distance that is shorter than the first predetermined distance, thereby opening the drain pipe; When the water collecting tank is removed from the main body case, the first protrusion of the water collecting tank separates from the contact portion of the on-off valve, and the on-off valve closes the drain pipe, When the water collection tank is removed from the main body case, the opening / closing part is moved away from the drain pipe by the first predetermined distance, the opening / closing part is hooked onto the claw part, and the drain hose part is attached to the drain pipe, and the water collection tank is then attached to the main body case, the second protrusion of the water collection tank comes into contact with the claw part, and the opening / closing valve comes out of the claw part and comes into contact with the drain hose part, 3. The dehumidifying device according to claim 2, wherein when the drain hose portion is removed from the drain pipe while the on-off valve is in contact with the drain hose portion, the contacting portion of the on-off valve comes into contact with the first protrusion, thereby opening the drain pipe.

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