Drainage tank and dehumidifier equipped with a drainage tank
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SHARP KK
- Filing Date
- 2025-01-24
- Publication Date
- 2026-08-05
Smart Images
Figure 2026126538000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a drainage tank and a dehumidifying device provided with the drainage tank.
Background Art
[0002] Conventionally, there is known a drainage tank for a dehumidifying device that stores drain water generated from the main body of the dehumidifying device and is removed from the main body for drainage when full (see, for example, Patent Document 1). The drainage tank has a tank case provided with an opening at the upper part and a lid that covers the opening of the tank case, and drainage from the drainage tank is enabled by opening and closing a part of the lid (lid convex part).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the drainage tank disclosed in Patent Document 1, when draining by removing it from the device main body (main body), it is necessary for the user to open a part of the lid with respect to the tank case in order to expose the drainage port, which is troublesome. On the other hand, if the drainage port is configured to be always open, when the device main body is moved while the drainage tank is attached to the device main body, the water surface shakes and condensed water (drain water) leaks out from the drainage port, or when removing the drainage tank from the device main body, the water surface shakes and condensed water (drain water) leaks out from the drainage port.
[0005] Therefore, an aspect of the present disclosure aims to provide, for example, a drainage tank and a dehumidifying device provided with the drainage tank that can easily drain condensed water while suppressing leakage of condensed water from the drainage port.
Means for Solving the Problems
[0006] A drain tank according to one aspect of the present disclosure is a drain tank attached to the main body of a dehumidifier, comprising: a tank body provided with a drain port; a handle provided on the tank body having a grip portion for the user to grasp, such that the vertical position of the grip portion is displaceable; and a drain opening / closing unit that moves between an open position that opens the drain port and a closed position that closes the drain port as the grip portion moves, wherein the drain opening / closing unit is in the open position when the grip portion is in the upper limit position and is in the closed position when the grip portion is in the lower limit position.
[0007] A dehumidifying device according to one aspect of the present disclosure comprises a drain tank and a device body to which the drain tank is attached. [Brief explanation of the drawing]
[0008] [Figure 1] This is a front perspective view of the dehumidifier according to the first embodiment. [Figure 2] This is a front perspective view of the dehumidifier with the cover removed. [Figure 3] This is a rear perspective view of the dehumidifier. [Figure 4] This is a cross-sectional view of a dehumidifier. [Figure 5] This is a front perspective view of the dehumidifier with the drain tank removed from the main unit. [Figure 6] This is a front perspective view of the drainage tank. [Figure 7] This is a disassembled perspective view of the drainage tank. [Figure 8] This is a top view of the main body. [Figure 9] This is a top view of the lid. [Figure 10] This is a cross-sectional view of a drain tank showing the position of the drain opening / closing mechanism when the gripping part is in its upper limit position. [Figure 11] This is a cross-sectional view of a drain tank showing the position of the drain opening / closing mechanism when the gripping part is in its lower limit position. [Figure 12] This is a top view of the drainage tank at its lowest position. [Figure 13] It is a perspective view showing the restricting part of the main body part. [Figure 14] It is a top view of the drainage tank at the upper limit position. [Figure 15] It is a cross-sectional view showing a first modification example of the drainage tank. [Figure 16] It is a top view showing a second modification example of the drainage tank. [Figure 17] It is a perspective view showing a third modification example of the drainage tank. [Figure 18] It is a perspective view showing a fourth modification example of the drainage tank. [Figure 19] It is a perspective view showing a fifth modification example of the drainage tank. [Figure 20] It is a cross-sectional view showing the drainage tank at the upper limit position. [Figure 21] It is a cross-sectional view showing the drainage tank at the lower limit position. [Figure 22] It is a perspective view showing the drainage tank with the lid part removed. [Figure 23] It is a cross-sectional view showing a sixth modification example of the drainage tank. [Figure 24] It is a perspective view showing the handle and the drainage opening / closing part according to a seventh modification example of the drainage tank. [[ID=三十七]]
Embodiments for Carrying Out the Invention
[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Regarding the drawings, the same or equivalent elements are denoted with the same reference numerals, and duplicate explanations are omitted.
[0010] The overall configuration of the dehumidifier 1 will be described with reference to Figures 1 to 4. Figure 1 is a front perspective view of the dehumidifier 1. Figure 2 is a front perspective view of the dehumidifier 1 with the cover 27 removed. Figure 3 is a rear perspective view of the dehumidifier 1. Figure 4 is a cross-sectional view of the dehumidifier 1 when cut along a vertical plane extending in the front-rear direction. Figure 5 is a front perspective view of the dehumidifier 1 showing the drain tank 100 removed from the main body 10. For convenience of explanation, the side on which the dehumidifier 1 is placed will be referred to as the bottom, the opposite side as the top, the side with the suction port 23a as the front, and the opposite side as the rear.
[0011] As shown in Figures 1 and 2, the dehumidifier 1 comprises a main unit 10 and a drain tank 100 that is detachably attached to the main unit 10.
[0012] The main body of the device 10 comprises a housing 20, a filter section 30 (see Figure 4), a dehumidifying section 40 (see Figure 4), and an air blowing section 50 (see Figure 4).
[0013] As shown in Figures 1 to 3, the housing 20 is formed in a roughly box shape. The housing 20 has a bottom portion 21, a top portion 22, a front portion 23, a rear portion 24, a left side portion 25, a right side portion 26, and a cover portion 27.
[0014] As shown in Figure 2, an intake port 23a is formed in the front portion 23. The intake port 23a is located slightly above the center of the front portion 23. The intake port 23a is a group of openings formed by the intersection of multiple vertically extending struts and multiple horizontally extending struts. A cover portion 27 is attached to the front portion 23 from the outside so as to cover the front portion 23. A gap is provided between the cover portion 27 and the front portion 23 so that air can be drawn in toward the intake port 23a.
[0015] As shown in Figures 3 and 4, an air outlet 24a is formed in the rear portion 24. The air outlet 24a is located at the upper end of the rear portion 24. An airflow direction changing unit 24b is provided in the air outlet 24a to change the direction of the air being blown out.
[0016] As shown in Figure 4, a connecting passage is provided inside the housing 20 that links the intake port 23a and the outlet port 24a. In the connecting passage, the filter section 30, the dehumidifying section 40, and the blowing section 50 are arranged in this order from the intake port 23a to the outlet port 24a.
[0017] The filter unit 30 collects dust particles from the air drawn in through the intake port 23a. The filter unit 30 includes, for example, a pre-filter 31 and a HEPA filter 32.
[0018] The dehumidification unit 40 dehumidifies the air passing through the communication passage. The dehumidification unit 40 includes an evaporator 41 and a condenser 42. The evaporator 41 and the condenser 42 are connected to a compressor 43 and an expansion valve to form a refrigeration cycle. In the dehumidification unit 40, the air in the communication passage is cooled in the evaporator 41, causing moisture in the air to condense and be removed. The moisture condensed in the evaporator 41 then falls due to its weight and is stored in the drain tank 100 located below it.
[0019] The dehumidifying unit 40 is a compressor-type dehumidifying unit, but is not limited to this; it may also be a desiccant-type dehumidifying unit, or a dehumidifying unit that uses both a compressor-type and a desiccant-type dehumidifying unit.
[0020] The blower unit 50 blows air from the intake port 23a towards the outlet port 24a. In this embodiment, the blower unit 50 is a sirocco fan. However, the blower unit 50 is not limited to a sirocco fan; any blower that blows air from the intake port 23a towards the outlet port 24a is acceptable.
[0021] As shown in Figure 5, the drain tank 100 stores condensation water generated in the dehumidification unit 40. The drain tank 100 is detachably mounted on the housing 20 (device body 10). An opening 26a is formed on the right side surface 26 of the housing 20. The housing 20 has a space S1 formed in the housing 20 that accommodates the drain tank 100, extending inward from the opening 26a. When the drain tank 100 is housed in the space S1 of the housing 20, the opening 26a of the housing 20 is closed. When the opening 26a is closed by the drain tank 100, one side of the drain tank 100 (the decorative panel 140 described later) is approximately flush with the right side surface 26 of the housing 20.
[0022] As shown in Figure 2, when the drain tank 100 is attached to the main body 10, at least a portion of the grip portion 151 of the handle 150 (described later) is exposed. Specifically, when the drain tank 100 is attached to the main body 10, one side of the drain tank 100 (the decorative panel portion 140 described later) and the grip portion 151 of the handle 150 (described later) are exposed. This makes it easy for the user to grasp the grip portion 151 and pull the drain tank 100 out of the main body 10. Furthermore, one side of the drain tank 100 (the decorative panel portion 140 described later) and the grip portion 151 of the handle 150 (described later) are separated vertically and face each other. This makes it easier to grip the grip portion 151, thus making it easier to pull out the drain tank 100.
[0023] As described above, the drain tank 100 is removed from the main body 10 of the device by being pulled out to the right from the housing 20, but it is not limited to this method; it is acceptable to pull it out from the front 23, rear 24, left side 25, or right side 26 of the housing 20.
[0024] The drain tank 100 will be described below using Figures 6 to 11. Figure 6 is a front perspective view of the drain tank 100. Figure 7 is an exploded perspective view of the drain tank 100. Figure 8 is a top view of the main body 110. Figure 9 is a top view of the lid 120. Figure 10 is a cross-sectional view of the drain tank 100 showing the position of the drain opening / closing part 160 when the gripping part 151 is at the upper limit position P1. Figure 11 is a cross-sectional view of the drain tank 100 showing the position of the drain opening / closing part 160 when the gripping part 151 is at the lower limit position P2. Figures 10 and 11 are cross-sectional views of the drain tank 100 cut along planes in the vertical and horizontal directions.
[0025] The drain tank 100 stores condensed water. The drain tank 100 is detachably mounted on the main body 10 of the device. When the drain tank 100 is mounted on the main body 10, it is located below the dehumidifying unit 40 (see Figure 4).
[0026] As shown in Figures 6 and 7, the drain tank 100 comprises a tank body 130 including a main body 110 and a lid 120, a decorative panel 140, a handle 150, and a drain opening / closing part 160.
[0027] As shown in Figure 7, the main body 110 is a container body having an opening 110a on its upper surface for storing condensed water. The main body 110 stores condensed water that falls from the dehumidifying unit 40 through the inlet 122 formed in the lid 120, which will be described later.
[0028] The main body 110 has a bottom portion 111, a front portion 112, a rear portion 113, a left side portion 114, and a right side portion 115. The bottom portion 111, front portion 112, rear portion 113, left side portion 114, and right side portion 115 of the main body 110 constitute the outer surface of the tank body 130.
[0029] The lid portion 120 is a member that covers the opening 110a of the main body portion 110. The lid portion 120 is a flat plate-shaped member that conforms to the shape of the opening 110a of the main body portion 110. The lid portion 120 is detachably attached to the main body portion 110. When the opening 110a of the main body portion 110 is closed, the lid portion 120 constitutes the upper surface of the tank body 130.
[0030] As shown in Figures 8 and 9, the tank body 130 has a constricted section 130a and a wide section 130b that is wider in the front-rear direction than the constricted section 130a.
[0031] The constricted portion 130a is the part of the front end of the left side of the tank body 130 that protrudes outward. The constricted portion 130a is, for example, roughly rectangular in plan view. The central part of the left side of the tank body 130 has a shape that is cut inward to match the outer shape of the compressor 43 located to the left of the tank body 130.
[0032] The constricted section 130a is provided on the left side of the tank body 130, extending from the center in the vertical direction to the upper end. The constricted section 130a is provided with a detection unit (not shown) that detects when the water level in the tank body 130 is full. The detection unit is, for example, a Hall IC, and detects when a float that moves up and down according to the water level has reached a predetermined water level.
[0033] The wide section 130b is the part of the tank body 130 excluding the narrow section 130a, and is the main part of the tank body 130. The wide section 130b is, for example, roughly rectangular in plan view.
[0034] In addition, the constricted portion 130a is formed by the front end of the left side of the tank body 130 protruding outward, but it is not limited to this; any part of the left side of the tank body 130 that protrudes outward is acceptable, and the central or rear end of the left side of the tank body 130 may also protrude outward.
[0035] Furthermore, although the tank body 130 has a narrowed section 130a and a wide section 130b, it is not limited to this, and it does not have to have a narrowed section 130a. In this case, the tank body 130 is configured with only the wide section 130b, that is, in a substantially rectangular shape.
[0036] As shown in Figure 9, the lid portion 120 has two drain ports 121, a water inlet 122, and two through ports 123. In this embodiment, the water inlet 122 and the two through ports 123 are integrally formed.
[0037] The drain port 121 is an opening for discharging condensed water stored in the tank body 130 to the outside when the drain tank 100 is removed from the device body 10. The two drain ports 121 are located near the left-right ends (near the left end) of the lid portion 120. The two drain ports 121 are spaced apart in the front-rear direction on the lid portion 120. Both drain ports 121 are located in the wide portion 130b.
[0038] The water inlet 122 is an opening into which water from the main body of the device 10 enters. The water inlet 122 is an opening for guiding condensation water that has fallen from the dehumidifier 40 into the tank body 130 when the drain tank 100 is attached to the main body of the device 10. The water inlet 122 is formed in a substantially rectangular shape with the front-to-back direction as its longitudinal direction. The water inlet 122 is located in the center of the lid 120 in the left-to-right direction. Note that the water inlet 122 is not limited to the above shape and position, and only needs to be formed in the part into which condensation water falls from the dehumidifier 40. Near the water inlet 122 on the lid 120, an inclined portion 124 is provided that slopes downward toward the water inlet 122. In this embodiment, the inclined portion 124 is adjacent to the left side of the water inlet 122. As a result, condensation water that has fallen from the dehumidifier 40 onto the lid 120 is guided to the water inlet 122 via the inclined portion 124.
[0039] The two through-holes 123 are openings through which the handle 150 passes. Specifically, each through-hole 123 is formed in a roughly rectangular shape with the left-right direction as its longitudinal direction. The two through-holes 123 communicate with the respective ends of the water inlet 122 in the front-rear direction. That is, the two through-holes 123 are spaced apart in the front-rear direction.
[0040] Although the water inlet 122 and the two through-ports 123 are formed integrally, the water inlet 122 and the two through-ports 123 may be formed separately.
[0041] As shown in Figures 6 and 7, the decorative panel 140 is a panel with the same pattern and decoration as the right side surface 26 of the housing 20. The decorative panel 140 is detachable from the outside of the right side surface 115 of the main body 110. When the drain tank 100 is mounted on the device body 10, the decorative panel 140 is flush with the right side surface 26 of the housing 20. At this time, the decorative panel 140 and the gripping portion 151 of the handle 150 (described later) are spaced apart in the vertical direction, so that the user can grasp the gripping portion 151 from below, making it easy to pull the drain tank 100 out of the housing 20.
[0042] As shown in Figures 10 and 11, the handle 150 has a gripping portion 151 that the user holds, and is provided on the tank body 130 such that the vertical position of the gripping portion 151 is displaceable. Here, "displaceable vertical position of the gripping portion 151" means that the gripping portion 151 is displaceable at least in the vertical direction, for example, the gripping portion 151 may be displaceable in the vertical direction and in one direction intersecting the vertical direction.
[0043] In this embodiment, the handle 150 is rotatably mounted on the tank body 130, allowing the gripping portion 151 to be displaced vertically. Specifically, the handle 150 has a rotating shaft portion 152 whose axis is oriented in the front-rear direction, and an arm portion 153 that connects the gripping portion 151 and the rotating shaft portion 152. By rotating the gripping portion 151 around the rotating shaft portion 152, the gripping portion 151 can be displaced in a plane represented by the vertical and horizontal directions.
[0044] The gripping portion 151 is, for example, a rod-shaped member, and is positioned with its longitudinal direction in the front-to-back direction. The gripping portion 151 is located outside the tank body 130, more specifically, above the top surface (lid portion 120) of the tank body 130.
[0045] The rotating shafts 152 are provided so as to be aligned in the front-rear direction. Two rotating shafts 152 are located inside the tank body 130 and are spaced apart in the front-rear direction. One rotating shaft 152 is rotatably supported by a support plate 112a located inside the front portion 112 of the main body 110. The other rotating shaft 152 is rotatably supported by a support plate 113a located inside the rear portion 113 of the main body 110.
[0046] The arm portions 153 are provided at each longitudinal end of the gripping portion 151. The two arm portions 153 extend in a direction perpendicular to the longitudinal direction of the gripping portion 151 so as to be parallel to each other; that is, the handle 150 is formed in a substantially U-shape. The end of each arm portion 153 opposite to the gripping portion 151 is connected to the corresponding rotating shaft portion 152.
[0047] Although the handle 150 has two arm sections 153, it is sufficient for it to be able to rotatably support the gripping section 151 around the rotating shaft section 152, and it may have only one arm section 153.
[0048] Furthermore, although the handle 150 rotates the gripping portion 151 with the front-to-back direction as the axial direction, it is not limited to this, and the gripping portion 151 may be rotated with one direction intersecting the up-and-down direction as the axial direction. For example, the gripping portion 151 may be rotated with the left-to-right direction as the axial direction.
[0049] Furthermore, while the handle 150 can be moved vertically by rotating the gripping portion 151, it is not limited to this method. For example, the gripping portion 151 may be moved linearly using a sliding mechanism or the like to allow for vertical positional displacement.
[0050] The following describes the range of movement (rotation range) of the gripping portion 151 using Figures 10 and 11. The gripping portion 151 is provided so as to be movable (rotatable) in one region (right-side region) that is sandwiched between plane F, which passes through the rotation center and is represented in the vertical and front-back directions. Furthermore, the gripping portion 151 is provided so as to be movable (rotatable) in the region above the upper surface (lid portion 120) of the tank body 130.
[0051] Specifically, the gripping portion 151 is configured to be movable (rotatable) between an upper limit position P1 and a lower limit position P2. Hereinafter, the rotation direction of the gripping portion 151 from the lower limit position P2 toward the upper limit position P1 will be referred to as the first rotation direction C1, and the rotation direction of the gripping portion 151 from the upper limit position P1 toward the lower limit position P2 will be referred to as the second rotation direction C2.
[0052] As shown in Figure 10, the upper limit position P1 is the position where the height of the gripping portion 151 in the vertical direction is highest when the handle 150 is moved, and is also the position when carrying the drain tank 100. In this embodiment, the upper limit position P1 is the end position when the handle 150 is rotated toward the first rotation direction C1, and the gripping portion 151 is located above the rotation center (rotation shaft portion 152). At the upper limit position P1, the arm portion 153 extends upward from the rotation center (rotation shaft portion 152).
[0053] As shown in Figure 11, the lower limit position P2 is the position where the height of the gripping portion 151 in the vertical direction is lowest when the handle 150 is moved, and is also the position when the drain tank 100 is housed in the device body 10. In this embodiment, the lower limit position P2 is the end position when the handle 150 is rotated toward the second rotation direction C2, and the gripping portion 151 is located above the right end of the lid portion 120. At the lower limit position P2, the arm portion 153 extends diagonally upward with respect to the horizontal direction from the rotation center (rotation axis portion 152).
[0054] As shown in Figures 10 and 11, the drain opening / closing unit 160 opens and closes the drain port 121 as the gripping unit 151 moves (rotates).
[0055] In this embodiment, the drain opening / closing section 160 is integrated with the handle 150 and is linked to the rotational movement of the gripping section 151. Specifically, the drain tank 100 further includes an extension section 170 that connects the rotating shaft section 152 and the drain opening / closing section 160, and the drain opening / closing section 160 rotates together with the extension section 170 around the rotating shaft section 152, thereby being linked to the rotational movement of the gripping section 151.
[0056] The drain opening / closing section 160 is located below the upper surface (lid 120) of the tank body 130, more specifically, inside the tank body 130. The drain opening / closing section 160 can close the drain port 121 from the bottom of the tank body 130. The drain opening / closing section 160 is formed, for example, in a substantially rectangular plate-like section. The drain opening / closing section 160 has a closing surface 161 that faces the drain port 121 in the closed position P4 described later. In this embodiment, two drain opening / closing sections 160 are provided, corresponding to the number of drain ports 121.
[0057] The two drain opening / closing sections 160 are spaced apart in the front-to-back direction. The distance between the two drain opening / closing sections 160 in the front-to-back direction is approximately the same as the distance between the two drain ports 121 in the front-to-back direction.
[0058] Two extension sections 170 are provided, corresponding to the number of drainage opening / closing sections 160. The two extension sections 170 extend in a direction perpendicular to the axial direction of the rotating shaft section 152 so as to be parallel to each other. The end of each extension section 170 opposite to the drainage opening / closing section 160 is connected to the corresponding rotating shaft section 152. Each extension section 170 is a plate-like member whose thickness in the vertical direction increases from one end to the other.
[0059] The following describes the range of movement (rotation range) of the drain opening / closing section 160 using Figures 10 to 12. Figure 12 is a top view of the drain tank 100 at the lower limit position P2.
[0060] As shown in Figures 10 and 11, the drain opening / closing section 160 is movable (rotatable) within the tank body 130 and in the other region (the left region) with respect to the plane F that passes through the rotation center and is aligned in the vertical and front-back directions.
[0061] Specifically, each drain opening / closing unit 160 is configured to be movable (rotatable) between an open position P3 that opens the drain port 121 and a closed position P4 that closes the drain port 121.
[0062] As shown in Figure 10, the open position P3 is the position of the drain opening / closing section 160 when the gripping section 151 is rotated to the upper limit position P1. In other words, it is the end position of the drain opening / closing section 160 when the gripping section 151 is rotated toward the first rotation direction C1. In the open position P3, the drain opening / closing section 160 is located below the drain port 121, and therefore the drain port 121 is open.
[0063] As shown in Figure 10, in the open position P3, at least a portion of the drain opening / closing section 160 is located directly below the drain port 121. In other words, in the open position P3, the drain opening / closing section 160 partially overlaps with the drain port 121 in a plan view. In Figure 10, the area directly below the drain port 121 is represented by two dashed lines, and since a portion of the drain opening / closing section 160 is located within these two dashed lines, a portion of the drain opening / closing section 160 is located directly below the drain port 121. As a result, the waves generated in response to shaking when carrying the drain tank 100 can be suppressed by the drain opening / closing section 160 directly below the drain port 121, thereby preventing condensation water from leaking out of the drain port 121.
[0064] As shown in Figure 11, the closed position P4 is the position of the drain opening / closing section 160 when the gripping section 151 is rotated to the lower limit position P2. In other words, it is the end position of the drain opening / closing section 160 when the gripping section 151 is rotated toward the second rotation direction C2. In the closed position P4, the drain opening / closing section 160 is in contact with or opposite the drain opening 121, and closes the drain opening 121 by covering it from below.
[0065] As shown in Figure 12, in the closed position P4, the area of the closing surface 161 of the drain opening / closing section 160 that faces the drain opening 121 is larger than the opening area of the drain opening 121. In this embodiment, the drain opening 121 is formed in a substantially triangular shape in plan view, and the closing surface 161 is formed in a substantially rectangular shape in plan view, and the closing surface 161 overlaps the entire drain opening 121 in plan view. As a result, in the closed position P4, the closing surface 161 can cover the drain opening 121 from below, thereby preventing condensation water from leaking out of the drain opening 121.
[0066] Furthermore, of the two drain outlets 121, the front drain outlet 121 has an equilateral triangle shape, with two vertices aligned horizontally and the remaining vertex positioned towards the front, while the rear drain outlet 121 has a right-angled triangle shape, with two sides forming a right angle positioned along the corners of the lid portion 120. As described above, by making the shape of the drain outlet 121 triangular, the angle between the two sides can be reduced compared to a rectangular shape, thus suppressing leakage of condensation water from the drain outlet 121 while stably discharging condensation water through the vertices.
[0067] As described above, when the drain tank 100 is attached to the main body of the device 10, that is, when the grip portion 151 is at the lower limit position P2, the drain port 121 is closed by the closing surface 161. This prevents condensation from leaking out of the drain port 121 when the main body of the device 10 is moved, and prevents condensation from leaking out of the drain port 121 when the drain tank 100 is removed from the main body of the device 10. On the other hand, when the drain tank 100 is suspended from the handle 150 by gripping the grip portion 151, that is, when the grip portion 151 is at the upper limit position P1, the drain opening / closing portion 160 moves downward from the drain port 121, and the drain port 121 opens. This makes it easy to drain condensation from the drain port 121 simply by tilting the drain tank 100.
[0068] The following describes the configuration for limiting the range of movement (rotation range) of the drain opening / closing section 160, using Figures 10 to 14. Figure 13 is a perspective view showing the limiting section 118 of the main body 110. Figure 14 is a top view of the drain tank 100 at the upper limit position P1. The lid section 120 is not shown in Figure 14.
[0069] As shown in Figures 10 and 11, the main body 110 has a limiting portion 118 that contacts the drain opening / closing portion 160 when the drain opening / closing portion 160 is in the open position P3, and restricts the drain opening / closing portion 160 from moving (rotating) from the open position P3 to the opposite direction from the closed position P4 (in this embodiment, the first rotational direction C1).
[0070] As shown in Figure 13, the limiting portion 118 is, for example, a rib provided inside the main body portion 110. The limiting portion 118 contacts the drain opening / closing portion 160 (the surface opposite to the closing surface 161) which is located in the open position P3. This restricts the drain opening / closing portion 160 from moving in the first rotation direction C1, thereby allowing the drain opening / closing portion 160 to be stably supported in the open position P3.
[0071] The limiting portions 118 are provided in proportion to the number of drain opening / closing portions 160. In this embodiment, the main body portion 110 has two limiting portions 118 corresponding to two drain opening / closing portions 160. One limiting portion 118 is, for example, a rib that protrudes inward from the front portion 112 of the main body portion 110, and the other limiting portion 118 is, for example, a rib that protrudes inward from the rear portion 113 of the main body portion 110.
[0072] The limiting portion 118 has a planar limiting surface 118a that contacts the drain opening / closing portion 160 when it is in the open position P3. The limiting surface 118a is an inclined surface that is tilted according to the shape of the back surface of the drain opening / closing portion 160 when it is in the open position P3. As a result, the back surface of the drain opening / closing portion 160 and the limiting surface 118a can be brought into surface contact, so that the drain opening / closing portion 160 can be supported more stably in the open position P3.
[0073] As shown in Figure 14, the restricting surface 118a contacts only a portion of the drain opening / closing section 160 located in the open position P3. Specifically, the length L1 in the front-rear direction of each drain opening / closing section 160 is made greater than the length L2 in the front-rear direction of the corresponding restricting surface 118a. Furthermore, each drain opening / closing section 160 is positioned offset inward from the restricting surface 118a in the front-rear direction. This allows waves generated in response to shaking when the drain tank 100 is carried to be suppressed by the portion of the back surface of the drain opening / closing section 160 that does not contact the restricting surface 118a, thereby suppressing waves generated inside the drain tank 100.
[0074] As shown in Figure 10, the rotating shaft portion 152 and the drain port 121 are located on one side (in this embodiment, the left side) of the left-right direction that intersects the vertical and front-rear (axial) directions with respect to the center of gravity G1 of the tank body 130. As a result, when the tank body 130 is suspended by gripping the handle portion 151, a rotational force in the second rotation direction C2 is applied to the tank body 130, causing the restricting portion 118 to be pressed toward the drain opening / closing portion 160 of the handle 150. Therefore, the restricting portion 118 and the drain opening / closing portion 160 can be kept in contact, which suppresses the swinging of the handle 150 relative to the tank body 130, making it possible to carry the drain tank 100 stably.
[0075] As shown in Figure 10, when the tank body 130 is full of water, the drain opening / closing section 160 is completely submerged in water when in the open position P3. The water level L3 shown in Figure 10 is the water level when the tank body 130 is full of water. In the main unit 10 of the dehumidifier 1, when the water level in the tank body 130 reaches water level L3, the dehumidification operation by the dehumidifier 1 is stopped.
[0076] In this embodiment, the drain opening / closing section 160 is rotated together with the handle 150, but it is sufficient if the drain opening 121 can be opened and closed in conjunction with the movement of the gripping section 151. For example, the drain opening / closing section 160 may be raised and lowered between an open position P3 and a closed position P4 by converting the rotational motion of the gripping section 151 into linear motion using a link mechanism or the like.
[0077] Furthermore, although the drain opening / closing section 160 is configured integrally with the handle 150, the system is not limited to this configuration, and the drain opening / closing section 160 and the handle 150 may move independently. In this case, for example, the rotational position of the handle 150 may be detected, and based on the detected rotational position of the handle 150, the drain opening / closing section 160 may be displaced to an open position P3 and a closed position P4 using a motor or the like.
[0078] The following describes a first modified example of the drainage tank using Figure 15. Figure 15 is a cross-sectional view showing a drainage tank 100a according to the first modified example. Drainage tank 100a differs from drainage tank 100 mainly in that, when the tank body 130 is full of water, only a portion of the drainage opening / closing section 160 is submerged in water when in the open position P3.
[0079] As shown in Figure 15, when the tank body 130 is full of water, only a portion of the drain opening / closing section 160 is submerged in water when it is in the open position P3. The water level L4 shown in Figure 15 is the water level when the tank body 130 is full of water.
[0080] As described above, at the water level L4 when the tank is full, a portion of the drain opening / closing section 160 is located above the water surface. This allows the waves generated by the shaking when the drain tank 100a is carried to be suppressed by the drain opening / closing section 160 above the water surface, thereby effectively preventing condensation from leaking out of the drain port 121.
[0081] The following sections will describe the second to fourth modified versions of the drainage tank using Figures 16 to 18. Figure 16 is a top view showing the drainage tank 100b according to the second modified version. Figure 17 is a perspective view showing the drainage tank 100c according to the third modified version. Figure 18 is a perspective view showing the drainage tank 100d according to the fourth modified version.
[0082] As shown in Figure 16, the lid portion 120b has two drain ports 121b. Each of the two drain ports 121b is formed in a substantially rectangular shape in plan view, and differs from the drain tank 100 in that one drain port 121b is provided in the narrowed portion 130a and the other drain port 121b is provided in the wide portion 130b. The modified example shown in Figure 16 is preferable because the narrowed portion 130a protrudes outward, making it possible to easily drain condensation water from the drain ports 121b.
[0083] As shown in Figure 17, the lid portion 120c has one drain port 121c. The drain port 121c differs from that of the drain tank 100 in that, in a plan view, it is formed in a substantially rectangular shape and is provided only in the constricted portion 130a. In the modified example shown in Figure 17, the drain port 121c is preferable because the constricted portion 130a protrudes outward, making it possible to easily drain condensation water from the drain port 121c.
[0084] As shown in Figure 18, the lid portion 120d has one drain port 121d. The drain port 121d differs from that of the drain tank 100 in that, in a plan view, it is formed in a substantially rectangular shape and is provided only in the wide portion 130b. In the modified example shown in Figure 18, the drain port 121d is provided at a position away from the narrow portion 130a where water tends to concentrate when the water surface is disturbed (in the wide portion 130b), which is preferable from the viewpoint of suppressing leakage of condensation water from the drain port 121d.
[0085] A fifth modified example of the drainage tank will be described using Figures 19 to 21. Figure 19 is a perspective view showing the drainage tank 100e according to the fifth modified example. Figure 20 is a cross-sectional view showing the drainage tank 100e at the upper limit position P1. Figure 21 is a cross-sectional view showing the drainage tank 100e at the lower limit position P2. Figure 22 is a perspective view showing the drainage tank 100e with the lid 120d removed.
[0086] As shown in Figure 19, the lid portion 120e differs from the drain tank 100 in that the water inlet 122e and a pair of through-holes 123e are formed separately. The water inlet 122e is located between a pair of arm portions 153. In plan view, the water inlet 122e is formed in a substantially rectangular shape. Around the water inlet 122e, there is an inclined portion 124e that slopes downward toward the water inlet 122e. Furthermore, the drain port 121e formed in the lid portion 120e has the same configuration as the drain port 121d shown in the fourth modified example, so its description is omitted.
[0087] As shown in Figures 20 and 21, the drain tank 100e further includes an inlet opening / closing section 180 that moves between an inlet closed position P5, which closes the inlet 122e, and an inlet open position P6, which opens the inlet 122e, as the gripping section 151 moves.
[0088] The water inlet opening / closing section 180 opens and closes the water inlet 122e in conjunction with the movement (rotational movement) of the gripping section 151. In this embodiment, the water inlet opening / closing section 180 is integrally configured with the handle 150e and is linked to the rotational movement of the gripping section 151. Specifically, the handle 150e further includes a connecting member 154 that connects the rotating shaft section 152 and the water inlet opening / closing section 180, and the water inlet opening / closing section 180 rotates together with the connecting member 154 around the rotating shaft section 152, thereby linking to the rotational movement of the gripping section 151.
[0089] The water inlet opening / closing section 180 is located below the upper surface (lid section 120) of the tank body 130, more specifically, inside the tank body 130. The water inlet opening / closing section 180 can close the water inlet 122e from the bottom of the tank body 130. The water inlet opening / closing section 180 is formed, for example, as a roughly rectangular plate-like section. The water inlet opening / closing section 180 has a water inlet closing surface 181 that faces the water inlet 122e in the water inlet closed position P5 described later.
[0090] As shown in Figure 22, the handle 150e includes a connecting member 154 that connects a pair of arm portions 153 and is located coaxially with the rotating shaft portion 152. The connecting member 154 is a rod-shaped member that extends in the front-rear direction. The connecting member 154 rotates together with the rotating shaft portion 152. A water inlet opening / closing portion 180 is fixed to the central part of the connecting member 154 in the front-rear direction. As a result, the water inlet opening / closing portion 180 rotates in conjunction with the rotation of the gripping portion 151.
[0091] As shown in Figures 20 and 21, the water inlet opening / closing section 180 is located in the water inlet closed position P5 when the gripping section 151 is in the upper limit position P1, and in the water inlet open position P6 when the gripping section 151 is in the lower limit position P2.
[0092] As shown in Figure 20, the water inlet closed position P5 is the position of the water inlet opening / closing section 180 when the gripping section 151 is rotated to the upper limit position P1. In other words, it is the terminal position of the water inlet opening / closing section 180 when the gripping section 151 is rotated toward the first rotation direction C1. In the water inlet closed position P5, the water inlet opening / closing section 180 is in contact with or opposite the water inlet 122e, and closes the water inlet 122e by covering it from below.
[0093] As shown in Figure 21, the water inlet open position P6 is the position of the water inlet opening / closing section 180 when the gripping section 151 is rotated to the lower limit position P2. In other words, it is the terminal position of the water inlet opening / closing section 180 when the gripping section 151 is rotated toward the second rotation direction C2. Since the water inlet opening / closing section 180 is located below the water inlet 122e, it opens the water inlet 122e.
[0094] As described above, when the drain tank 100 is attached to the main body of the device 10, that is, when the grip portion 151 is at the lower limit position P2, the water inlet 122e is opened, allowing condensation water from the main body of the device 10 to be taken into the tank body 130. On the other hand, when the drain tank 100 is suspended from the handle 150e by gripping the grip portion 151, that is, when the grip portion 151 is at the upper limit position P1, the water inlet 122e can be closed by the water inlet closing surface 181, thereby preventing condensation water from leaking out of the tank body 130 from the water inlet 122e.
[0095] In the water inlet opening / closing section 180, the area of the water inlet closing surface 181 facing the water inlet 122e in the water inlet closed position P5 is larger than the opening area of the water inlet 122e. In a plan view, the water inlet closing surface 181 overlaps the entire water inlet 122e. As a result, in the water inlet closed position P5, the water inlet closing surface 181 can cover the water inlet 122e from below, thus preventing condensation water from leaking out of the water inlet 122e.
[0096] In this modified example, the water inlet opening / closing section 180 is rotated together with the handle 150, but it is sufficient if the water inlet 122e can be opened and closed in conjunction with the movement of the gripping section 151. For example, the water inlet opening / closing section 180 may be raised and lowered between the water inlet closed position P5 and the water inlet open position P6 by converting the rotational motion of the gripping section 151 into linear motion using a link mechanism or the like.
[0097] Furthermore, although the water inlet opening / closing section 180 is configured integrally with the handle 150, it is not limited to this configuration, and the water inlet opening / closing section 180 and the handle 150 may move independently. In this case, for example, the rotational position of the handle 150 may be detected, and based on the detected rotational position of the handle 150, the water inlet opening / closing section 180 may be displaced to the water inlet closed position P5 and the water inlet open position P6 using a motor or the like.
[0098] The following describes a sixth modified example of the drainage tank using Figure 23. Figure 23 is a cross-sectional view showing a drainage tank 100f according to the sixth modified example. The drainage tank 100f mainly differs from the drainage tank 100 in that it further includes a spring 155 that applies elastic force so that the gripping portion 151 moves to the upper limit position P1.
[0099] As shown in Figure 23, the spring 155 is, for example, a torsion spring. The spring 155 has a helical portion 155a that is wound around the rotating shaft portion 152, one end 155b that extends substantially linearly from the helical portion 155a, and the other end 155c that extends substantially linearly from the helical portion 155a. The one end 155b contacts the protruding piece 152a of the rotating shaft portion 152 so as to impart an elastic force in the first rotation direction C1, and the other end 155c contacts the main body portion 110.
[0100] In the above configuration, when the drain tank 100f is attached to the device body 10, the grip portion 151 is pushed downward by the device body 10, so that it is in the lower limit position P2. When the drain tank 100f is removed from the device body 10, one end 155b of the spring 155 is biased in the first rotational direction C1 together with the protruding piece 152a, so that the rotating shaft portion 152 rotates in the first rotational direction C1 and the handle 150 moves to the upper limit position P1. As described above, the handle 150 is moved to the upper limit position P1, so convenience is improved.
[0101] The following describes a seventh modified example of the drain tank using Figure 24. Figure 24 is a perspective view showing the handle 150 and the drain opening / closing part 160g of the drain tank according to the seventh modified example. In this modified example, the handle 150 differs from the drain tank 100 in that the gripping part 151 moves to the upper limit position P1 due to the weight of the drain opening / closing part 160g.
[0102] As shown in Figure 24, the drain opening / closing section 160g comprises a weight-holding section 162 including a closing surface 161, and a weight 163. The weight-holding section 162 is formed in a box shape with an open bottom. The top surface of the weight-holding section 162 is the closing surface 161. The weight-holding section 162 is capable of holding the weight 163 by having a pair of locking claws 162a at its lower end for holding the weight 163. The weight 163 has enough weight that, while held by the weight-holding section 162, the gripping section 151 rotates in the first rotational direction C1 and moves to the upper limit position P1.
[0103] In the above configuration, when the drain tank is attached to the device body 10, the gripping portion 151 is pushed downward by the device body 10, so it is in the lower limit position P2. When the drain tank is removed from the device body 10, the weight of the drain opening / closing portion 160g including the counterweight 163 causes the rotating shaft portion 152 to rotate in the first rotation direction C1, and the gripping portion 151 moves to the upper limit position P1. As described above, the gripping portion 151 is moved to the upper limit position P1, so convenience is improved.
[0104] In the above configuration, the drain tank 100 is a drain tank 100 attached to the main body 10 of the dehumidifier 1, and comprises a tank body 130 provided with a drain port 121, a handle 150 provided on the tank body 130 having a grip portion 151 for the user to grasp, such that the vertical position of the grip portion 151 can be displaced, and a drain opening / closing unit 160 that moves between an open position P3 that opens the drain port 121 and a closed position P4 that closes the drain port 121 as the grip portion 151 moves. The drain opening / closing unit 160 is located in the open position P3 when the grip portion 151 is in the upper limit position P1, and is located in the closed position P4 when the grip portion 151 is in the lower limit position P2.
[0105] When the drain tank 100 is attached to the main body of the device 10, that is, when the grip portion 151 is at the lower limit position P2, the drain port 121 is closed by the closing surface 161. This prevents condensation from leaking out of the drain port 121 when the main body of the device 10 is moved or when the drain tank 100 is removed from the main body of the device 10. On the other hand, when the drain tank 100 is suspended from the handle 150 by gripping the grip portion 151, that is, when the grip portion 151 is at the upper limit position P1, the drain opening / closing portion 160 moves downward from the drain port 121, and the drain port 121 opens. This makes it easy to drain condensation from the drain port 121 simply by tilting the drain tank 100.
[0106] The drain opening / closing section 160 is integrated with the handle 150. This allows the drain opening 121 to be opened and closed in conjunction with the movement of the handle 150.
[0107] The handle 150 is rotatably mounted on the tank body 130, the gripping portion 151 rotates between an upper limit position P1 and a lower limit position P2, and the drain opening / closing portion 160 rotates between an open position P3 and a closed position P4. This allows the drain port 121 to be opened and closed in conjunction with the rotational movement of the handle 150.
[0108] The handle 150 is positioned so that the rotation axis (rotation axis portion 152) is aligned with a first direction (front-to-back direction) that intersects the vertical direction. The rotation axis (rotation axis portion 152) and the drain port 121 are located on one side (left side in the left-to-right direction) of the second direction that intersects the vertical direction and the first direction with respect to the center of gravity G1 of the tank body 130. As a result, when the grip portion 151 is grasped and the tank body 130 is suspended, a rotational force is applied to the tank body 130 in the second rotation direction C2, causing the limiting portion 118 to be pressed toward the drain opening / closing portion 160 of the handle 150. Therefore, the limiting portion 118 and the drain opening / closing portion 160 can be kept in contact, which suppresses the swinging of the handle 150 relative to the tank body 130, making it possible to carry the drain tank 100 stably.
[0109] The drain tank 100 further includes a limiting part 118 that contacts the drain opening / closing part 160 when the drain opening / closing part 160 is in the open position P3, and restricts the movement of the drain opening / closing part 160 from the open position P3 to the opposite direction from the closed position P4. This allows the drain opening / closing part 160 to be stably supported in the open position P3.
[0110] The drain opening / closing section 160 is formed in a plate-like shape, and the restricting section 118 has a planar restricting surface 118a that contacts the drain opening / closing section 160 when it is in the open position P3. This allows the back surface of the drain opening / closing section 160 and the restricting surface 118a to be in surface contact, thereby enabling the drain opening / closing section 160 to be supported more stably in the open position P3.
[0111] The restricting surface 118a contacts only a portion of the drain opening / closing section 160 when it is in the open position P3. As a result, waves generated in response to shaking when the drain tank 100 is carried can be suppressed by the portion of the back surface of the drain opening / closing section 160 that does not come into contact with the restricting surface 118a, thereby suppressing waves generated inside the drain tank 100.
[0112] In the closed position P4, the area of the closing surface 161 of the drain opening / closing section 160 that faces the drain port 121 is larger than the opening area of the drain port 121. As a result, in the closed position P4, the closing surface 161 can cover the drain port 121, thereby preventing condensation water from leaking out of the drain port 121.
[0113] The drain port 121 is formed on the upper surface (lid portion 120) of the tank body 130, the grip portion 151 is located above the upper surface (lid portion 120), and the drain opening / closing portion 160 is located below the upper surface (lid portion 120).
[0114] In the open position P3, at least a portion of the drain opening / closing section 160 is located directly below the drain port 121. This allows the drain opening / closing section 160 to suppress the waves generated by the shaking when the drain tank 100 is carried, thereby preventing condensation from leaking out of the drain port 121.
[0115] When the tank body 130 is full of water, a portion of the drain opening / closing section 160 is submerged in water when in the open position P3. This allows the drain opening / closing section 160 to suppress waves generated by the shaking when the drain tank 100a is carried, thereby effectively preventing condensation from leaking out of the drain port 121.
[0116] When the tank body 130 is full of water, the drain opening / closing section 160 is completely submerged in water when in the open position P3. This allows the drain opening / closing section 160 to suppress the waves generated by the shaking when the drain tank 100 is carried, thereby preventing condensation from leaking out of the drain port 121.
[0117] The tank body 130 has a narrow section 130a and a wider section 130b that is wider than the narrow section 130a, and the drain port 121 is provided in the wider section 130b. The drain port 121 is provided in a position away from the narrow section 130a (wide section 130b) where water tends to concentrate when the water surface is disturbed, which is preferable from the viewpoint of suppressing leakage of condensation water from the drain port 121.
[0118] The tank body 130 has a constricted section 130a and a wider section 130b that is wider than the constricted section 130a, and the drain port 121c is provided in the constricted section 130a. The drain port 121c is preferable because the constricted section 130a protrudes outward, making it easy to drain condensation water from the drain port 121c.
[0119] The tank body 130 is further provided with a second drain port (the other drain port 121b) that is different from the first drain port (one drain port 121b), and the tank body 130 has a narrowed section 130a and a wide section 130b that is wider than the narrowed section 130a, and the first drain port (one drain port 121b) and the second drain port (the other drain port 121b) are provided in the narrowed section 130a and the wide section 130b, respectively.
[0120] The tank body 130 is further provided with a water inlet 122e into which water from the device body 10 enters. The drain tank 100e further includes a water inlet opening / closing unit 180 that moves between a water inlet open position P6, which opens the water inlet 122e, and a water inlet closed position P5, which closes the water inlet 122e, as the gripping unit 151 moves. The water inlet opening / closing unit 180 is located at the water inlet closed position P5 when the gripping unit 151 is at the upper limit position P1, and at the water inlet open position P6 when the gripping unit 151 is at the lower limit position P2. As a result, when the drain tank 100 is attached to the device body 10, that is, when the gripping unit 151 is at the lower limit position P2, the water inlet 122e is opened, so that condensed water from the device body 10 can be taken into the tank body 130. On the other hand, when the grip portion 151 is held and the drain tank 100 is suspended from the handle 150e, that is, when the grip portion 151 is in the upper limit position P1, the water inlet 122e can be closed by the water inlet closing surface 181, thereby preventing condensation water from leaking out of the water inlet 122e to the outside of the tank body 130.
[0121] The drain tank 100f is further equipped with a spring 155 that applies elastic force to the handle 150 so that the gripping portion 151 moves to the upper limit position P1. As a result, when the drain tank 100f is removed from the device body 10, the handle 150 moves to the upper limit position P1 by the elastic force of the spring 155, thus improving convenience.
[0122] The handle 150 is configured such that the gripping portion 151 moves to the upper limit position P1 due to the weight of the drain opening / closing portion 160g. As a result, when the drain tank is removed from the device body 10, the handle 150 moves to the upper limit position P1 due to the weight of the drain opening / closing portion 160g, thus improving convenience.
[0123] The dehumidifier 1 comprises a drain tank 100 and a main unit 10 to which the drain tank 100 is attached.
[0124] In the dehumidifier 1, when the drain tank 100 is attached to the main body 10, at least a portion of the grip portion 151 is exposed. This makes it easier to grip the grip portion 151, thus facilitating the removal of the drain tank 100 from the main body 10.
[0125] In this application, the "first direction" corresponds to the front-to-back direction disclosed in the above embodiment, and the "second direction" corresponds to the left-to-right direction disclosed in the above embodiment. However, these terms are defined for the sake of clarity and are not limited to the directions disclosed in the above embodiment.
[0126] This disclosure is not limited to the embodiments described above, and various modifications are possible. For example, the configurations shown in the embodiments above can be replaced with configurations that are substantially the same, that produce the same effects, or that can achieve the same purpose. Furthermore, some or all of the embodiments of this disclosure may be used in combination. [Explanation of symbols]
[0127] 1 Dehumidifier, 10 Main unit, 100 Drain tank, 100a Drain tank, 100b Drain tank, 100c Drain tank, 100d Drain tank, 100e Drain tank, 100f Drain tank, 118 Restricting section, 118a Restricting surface, 120 Lid (top surface of tank body), 121 Drain port, 121a Drain port, 121b Drain port, 121c Drain port, 121d Drain port, 122e Water inlet, 130 Tank body, 130a Narrow section, 130b Wide section, 150 Handle, 150e Handle, 151 Gripping section, 152 Rotating shaft section, 155 Spring, 160 Drain opening / closing section, 160g Drain opening / closing section, 161 Closing surface, 180 Water inlet opening / closing section, G1 Center of gravity, P1 Upper limit position, P2 lower limit position, P3 open position, P4 closed position, P5 water entry closed position, P6 water entry open position
Claims
1. A drain tank attached to the main body of a dehumidifier, A tank body with a drain outlet, A handle is provided on the tank body, having a gripping portion for the user to hold, and the vertical position of the gripping portion is displaceable. The device includes a drain opening / closing mechanism that moves between an open position, where the drain opening is open, and a closed position, where the drain opening is closed, as the gripping mechanism moves. The drain opening / closing section is positioned in the open position when the gripping section is in the upper limit position, and in the closed position when the gripping section is in the lower limit position. Drainage tank.
2. The drain opening / closing section is configured to be integrated with the handle. The drainage tank according to claim 1.
3. The handle is rotatably mounted relative to the tank body. The gripping portion rotates between the upper limit position and the lower limit position. The drain opening / closing part rotates between the open position and the closed position. The drainage tank according to claim 2.
4. The handle is provided such that its axis of rotation is aligned with the first direction intersecting the vertical direction. The rotating shaft and the drain port are located on one side of the center of gravity of the tank body in a second direction that intersects the vertical direction and the first direction. The drainage tank according to claim 3.
5. When the drain opening / closing part is in the open position, the system further includes a limiting part that contacts the drain opening / closing part and restricts the drain opening / closing part from moving in the direction opposite to the closed position from the open position. A drainage tank according to any one of claims 1 to 4.
6. The drain opening / closing part is formed in a plate-like portion, The restricting portion has a planar restricting surface that contacts the drain opening / closing portion located in the open position. The drainage tank according to claim 5.
7. The restricting surface contacts only a portion of the drain opening / closing section located in the open position. The drainage tank according to claim 6.
8. The drain opening / closing section, in the closed position, has a closed surface area that faces the drain opening, which is larger than the opening area of the drain opening. A drainage tank according to any one of claims 1 to 4.
9. The drain port is formed on the upper surface of the tank body, The gripping portion is located above the upper surface, The drain opening / closing section is located below the upper surface. A drainage tank according to any one of claims 1 to 4.
10. The drain opening / closing section, in the open position, has at least a portion of it located directly below the drain opening. The drainage tank according to claim 9.
11. When the tank body is full of water, a portion of the drain opening / closing section is submerged in the water when in the open position. The drainage tank according to claim 9.
12. When the tank body is full of water, the drain opening / closing section is completely submerged in the water when in the open position. The drainage tank according to claim 9.
13. The tank body has a constricted section and a wider section that is wider than the constricted section. The drain outlet is provided in the wide section. A drainage tank according to any one of claims 1 to 4.
14. The tank body has a constricted section and a wider section that is wider than the constricted section. The drain outlet is provided in the constricted portion. A drainage tank according to any one of claims 1 to 4.
15. The tank body is further provided with a second drain port, which is different from the first drain port, which is the drain port. The tank body has a constricted section and a wider section that is wider than the constricted section. The first drain port and the second drain port are provided in the narrowed portion and the wide portion, respectively. A drainage tank according to any one of claims 1 to 4.
16. The tank body is further provided with a water inlet into which water from the device body enters. The system further includes a water inlet opening / closing unit that moves between a water inlet open position and a water inlet closed position as the gripping unit moves, The water inlet opening / closing section is positioned in the water inlet closed position when the gripping section is in the upper limit position, and in the water inlet open position when the gripping section is in the lower limit position. A drainage tank according to any one of claims 1 to 4.
17. The handle is further provided with a spring that applies an elastic force to the gripping portion so that it moves to the upper limit position. A drainage tank according to any one of claims 1 to 4.
18. The handle is configured such that the gripping portion moves to the upper limit position due to the weight of the drain opening / closing section. The drainage tank according to claim 3.
19. A drainage tank according to any one of claims 1 to 4, The apparatus comprises the main body of the apparatus to which the drainage tank is attached, Dehumidifier.
20. When the drain tank is attached to the main body of the device, at least a portion of the gripping portion is exposed. The dehumidifying device according to claim 19.