Dehumidification device

Abstract

The dehumidification device includes a main body case having an air suction port and an air discharge port. A heat absorber, a heat exchanger, a radiator and a fan are arranged on a main body shell in the front-back direction. The dehumidification device is provided with: a first dehumidification path through which a first portion of suction air sucked into the main body case from the air suction port is blown out of the main body case from the air blow-out port through the heat absorber, a first passage of the heat exchanger, and the heat sink by the action of the fan, and a second dehumidification path through which a second portion of suction air sucked into the main body case from the air blow-out port is blown out of the main body case; and a second dehumidification path that blows a second portion of the intake air out of the main body case from the air outlet through the second passage of the heat exchanger and the radiator. Further, the dehumidification device includes a first bypass air passage that is an air passage surrounding a first U-shaped pipe for refrigerant protruding from one side of the radiator, communicates with a radiator gap provided between the heat exchanger and the radiator, and has a first opening.

Description

Technical Field

[0001] The present invention relates to a dehumidifying device. Background Art

[0002] A dehumidifying device for a living space and for reducing the humidity in the living space or the like is known. For example, Patent Document 1 describes a dehumidifying device including a dehumidifying unit, which is constituted by a refrigeration cycle in which a compressor, a radiator, an expander, and an absorber are connected in series in a ring shape.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2020-116580 Summary of the Invention

[0006] The dehumidifying device described in Patent Document 1 has a structure in which the radiator is cooled by the air flowing through the third air passage, but since the air flowing through the third air passage is deviated, the ability to cool the radiator is insufficient.

[0007] The present invention provides a dehumidifying device capable of improving the ability to cool a radiator.

[0008] A dehumidifying device according to one aspect of the present invention includes a main body case having an air suction port and an air blow-out port, and on the main body case, an absorber, a heat exchanger, a radiator, and a blower are arranged in the front-rear direction. The dehumidifying device has: a first dehumidifying path that, by the action of the blower, blows out a first part of the sucked air sucked into the main body case from the air suction port to the outside of the main body case via the absorber, the first passage of the heat exchanger, and the radiator; and a second dehumidifying path that blows out a second part of the sucked air to the outside of the main body case from the air blow-out port via the second passage of the heat exchanger and the radiator. The dehumidifying device includes a first bypass air passage that is an air passage surrounding a first U-shaped tube for refrigerant protruding from one side portion of the radiator, communicates with a radiator gap provided between the heat exchanger and the radiator, and has a first opening into which a fourth part of the sucked air flows.

[0009] In addition, any combination of the above-described constituent elements, and after converting the description of the present invention among a method, a device, a system, a recording medium, a computer program, etc., it is still effective as an aspect of the present invention.

[0010] Advantages of the Invention

[0011] According to the present invention, there is provided a dehumidifying device capable of improving the ability to cool a radiator. Brief Description of the Drawings

[0012] Figure 1It is a perspective view schematically showing a dehumidifying device according to an embodiment of the present invention.

[0013] Figure 2 is schematically showing Figure 1 a side cross-sectional view of the dehumidifying device.

[0014] Figure 3 is schematically showing Figure 1 a diagram of the air passage of the dehumidifying device.

[0015] Figure 4 is schematically showing Figure 1 a diagram of the air flow of the dehumidifying device.

[0016] Figure 5 is showing Figure 1 a perspective view of the radiator of the dehumidifying device.

[0017] Figure 6 is showing Figure 1 a rear view of the radiator of the dehumidifying device.

[0018] Figure 7A is Figure 1 a perspective view of the damper of the first example in the dehumidifying device.

[0019] Figure 7B is Figure 1 a perspective view of the damper of the second example in the dehumidifying device.

[0020] Figure 8A is schematically showing Figure 1 the operation of the damper of the first example in the dehumidifying device.

[0021] Figure 8B is schematically showing Figure 1 the operation of the damper of the first example in the dehumidifying device.

[0022] Figure 9A is schematically showing Figure 1 the operation of the damper of the second example in the dehumidifying device.

[0023] Figure 9B is schematically showing Figure 1 the operation of the damper of the second example in the dehumidifying device.

[0024] Figure 10 is showing Figure 1 a block diagram of the system for controlling the damper of the dehumidifying device.

[0025] Figure 11 is a diagram schematically showing another example of a specific part of the radiator.

[0026] Figure 12 It is schematically represented Figure 1 Front view of the air intake of the fan and the heat absorber of the dehumidification device.

[0027] Figure 13 It is schematically represented Figure 1 A three-dimensional view of the absorber side cylinder and front surface portion of the dehumidification device.

[0028] Figure 14 It is schematically represented Figure 1 A three-dimensional diagram of the absorber side cylinder and the absorber of the dehumidification device.

[0029] Figure 15A It is a top view schematically showing the heat absorber side cylinder portion.

[0030] Figure 15B It is a top view schematically showing the heat absorber side cylinder portion.

[0031] Description of Reference Numerals

[0032] 1 Main body shell

[0033] 2 Air intake

[0034] 4 Air outlet

[0035] 5 Dehumidification unit

[0036] 6 Fan

[0037] 7 Compressor

[0038] 8 Radiator

[0039] 8a upper part

[0040] 8c face

[0041] 8e lateral protrusion

[0042] 9 Expander

[0043] 10 Heat sink

[0044] 10c Left and right center

[0045] 11 Heat exchanger

[0046] 11c inclined portion

[0047] 12a Water catchment

[0048] 12b Water collection tank

[0049] 15 Heat sink clearance

[0050] 16 Heat absorber side cylinder

[0051] 16a Extension end

[0052] 16b Side face

[0053] 16c Upper surface part

[0054] 16e Opening

[0055] 16g Distance

[0056] 16h Space

[0057] 16j Guide surface

[0058] 17 First passage

[0059] 18 Second passage

[0060] 19 Radiator gap

[0061] 21 Side face

[0062] 22 Front surface part

[0063] 23 Rear surface part

[0064] 25 Operation part

[0065] 31 Louver

[0066] 32 Motor

[0067] 33 Fan <o000173>34 Air passage

[0069] 40 Damper

[0070] 41 First blade

[0071] 42 Second blade

[0072] 43 Shaft part

[0073] 44 Damper control system

[0074] 46 Control unit

[0075] 46a Arithmetic unit

[0076] 46b Driving part

[0077] 48 Temperature sensor

[0078] 51 First dehumidification path

[0079] 52 Second dehumidification path

[0080] 53 Third dehumidification path

[0081] 54 Fourth dehumidification path It should be noted that there is a possible error in the original text where "<o000173>" should probably be "

[0068] ". This has been corrected in the translation for consistency.

[0082] 60 Inhaled air

[0083] 61 First part

[0084] 62 Second part

[0085] 63 Third part

[0086] 64 Fourth part

[0087] 68 Inlet port

[0088] 68c Center

[0089] 71 First air passage

[0090] 72 Second air passage

[0091] 73 Third bypass air passage

[0092] 74 First bypass air passage

[0093] 74a First opening

[0094] 75 Second bypass air passage

[0095] 75a Second opening

[0096] 80 Refrigerant pipe

[0097] 81a Main refrigerant pipe

[0098] 81b First U-shaped pipe

[0099] 81c Second U-shaped pipe

[0100] 83 Refrigerant pipe

[0101] 83b U-shaped pipe

[0102] 84 Outer frame

[0103] 85 Radiator side cylinder part

[0104] 85a Upper protruding part

[0105] 85b Right protruding part

[0106] 85c Lower protruding part

[0107] 85d Left protruding part

[0108] 86 Rectangular opening

[0109] 88 Specific part

[0110] 100 Dehumidifying device Detailed implementation mode

[0111] Hereinafter, a mode for carrying out the present invention will be described with reference to the accompanying drawings. All the embodiments described below represent a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, arrangement positions and connection manners of the constituent elements, and steps (processes) and the order of steps shown in the following embodiments are only examples and do not limit the present invention. Therefore, among the constituent elements in the following embodiments, the constituent elements not described in the independent claims representing the uppermost concept of the present invention are described as arbitrary constituent elements. In addition, in each figure, the same reference numerals are given to substantially the same structures, and repeated descriptions are omitted or simplified.

[0112] In addition, terms including ordinal numbers such as first and second are used to describe various constituent elements, but this term is only used to distinguish one constituent element from other constituent elements, and this term does not limit the constituent elements.

[0113] [Embodiment]

[0114] With reference to Figures 1 to 4 , the schematic structure of the dehumidifying device 100 according to an embodiment of the present invention will be described. Figure 1 is a perspective view showing the dehumidifying device 100 according to the embodiment. Figure 2 is a cross-sectional view of the dehumidifying device 100 along the A-A line when viewed from the side along Figure 1 .

[0115] As Figure 1 shown, the dehumidifying device 100 of the present embodiment has a box-shaped main body case 1 as an outer shell, and the outside and inside of the main body case 1 are distinguished according to the main body case 1. An air suction port 2 and an air blowout port 4 are provided on the main body case 1.

[0116] As Figure 2 shown, the dehumidifying device 100 includes an absorber 10, a heat exchanger 11, a radiator 8, and a blower 6. The absorber 10, the heat exchanger 11, the radiator 8, and the blower 6 are arranged in this order in the front-rear direction in the main body case 1. The direction marks of the device in this specification are defined according to the direction when the dehumidifying device is set in a state where it can operate normally. In the dehumidifying device 100, the side where the absorber 10 is arranged with respect to the radiator 8 is referred to as "front", the opposite side is referred to as "rear", and the horizontal direction orthogonal to the front-rear direction is referred to as "left-right direction".

[0117] Sometimes, the state observed from the front is called "front view", the state observed from the back is called "rear view", the states observed from the left and right are called "side views", and the state observed from above is called "top view". Additionally, sometimes the air flow generated by the action of the blower 6 is called "wind", and sometimes the upstream and downstream of this air flow are called "upwind" and "downwind". These designations are not restricted by the posture of the dehumidifying device 100 during use, and the dehumidifying device 100 can be used in any posture.

[0118] In the embodiment, the front-to-back width of the main body case 1 is smaller than the left-to-right width, and the up-and-down width is larger than the left-to-right width. Regarding the main body case 1, the part constituting the outer surface on the front side is called the "front surface part", the part constituting the outer surface opposite to the front surface part is called the "rear surface part", the parts constituting the outer surfaces on the left and right sides are called the "side surface parts", and the part constituting the outer surface on the upper side is called the "upper surface part".

[0119] An operation part 25 is provided on the front side of the upper surface part of the main body case 1. The operation part 25, for example, receives input from the user or displays information about the dehumidifying device such as the working mode or the current humidity to the user. In the front-to-back direction, an absorber gap 15 is provided between the absorber 10 and the front surface part 22. Additionally, a radiator gap 19 is provided between the radiator 8 and the heat exchanger 11.

[0120] In the embodiment, the air suction port 2 is arranged on the side surface part 21 of the main body case 1. The air suction port 2 is a rectangular opening that sucks air from a direction perpendicular to the side surface part 21 of the main body case 1 and is provided with a grid. In the embodiment, the air blowout port 4 is arranged at the rear side of the upper part of the main body case 1. Above the air blowout port 4, a louver 31 is provided to change the direction of the air blown out from the air blowout port 4.

[0121] The blower 6 has a motor 32 and a fan 33 that sucks and discharges air. The fan 33 is connected to the rotating shaft of the motor 32. The blower 6 has an air suction port 68 that is an opening provided on the surface opposite to the radiator 8. The blower 6 sucks the air that has passed through the dehumidifying part 5 through the air suction port 68 and blows the sucked air to the outside of the blower 6. Thus, the blower 6 causes the air outside the main body case 1 sucked from the air suction port 2 to pass through the dehumidifying part 5 and then blows it out of the main body case 1 from the air blowout port 4. The passage of this air is the air passage 34.

[0122] When the air inlet 2 is arranged on the opposite side of the suction port 68 of the blower 6 with respect to the heat absorber 10, the wind of the first part 61 which is a part of the sucked air 60 is deflected toward the center of the heat absorber 10. Due to the deflection of the wind, it is difficult for dew to form on the periphery of the heat absorber 10 and the radiator 8, and the dehumidifying ability is reduced. Therefore, in the present embodiment, the air inlets 2 are respectively provided on the left and right side faces 21 of the main body case 1. In this case, since the deflection of the wind flowing into the heat absorber 10 is uniform, the wind can flow through the entire heat absorber 10. Therefore, the dew condensation area in the dehumidifying device 100 can be increased and the dehumidifying ability can be improved.

[0123] In addition, as Figure 2 shown, an air passage 34, a blower 6 and a dehumidifying section 5 are arranged in the main body case 1 of the dehumidifying device 100. The air passage 34 communicates the air inlet 2 and the air outlet 4. By the action of the blower 6, the sucked air 60 is sucked into the main body case 1 from the air inlet 2 and blown out from the air outlet 4 through the air passage 34.

[0124] Figure 3 is a diagram schematically showing the air passage 34 of the dehumidifying device 100. The sucked air 60 is respectively branched into a first part 61, a second part 62, a third part 63 and a fourth part 64 which are parts of the sucked air 60 in the main body case 1. Figure 4 is a diagram showing the overlapping of the flows of the wind of the first part 61, the second part 62 and the third part 63 in a sectional view. In addition, in Figure 4 , the flow of the air in the state where a damper 40 described later is opened is shown.

[0125] The air passage 34 in the embodiment is composed of a plurality of dehumidifying paths. The air passage 34 is composed of a first dehumidifying path 51, a second dehumidifying path 52, a third dehumidifying path 53 and a fourth dehumidifying path 54. The flow path of the wind in the first dehumidifying path 51 is called a first air path 71, the flow path of the wind in the second dehumidifying path 52 is called a second air path 72, the flow path of the wind in the third dehumidifying path 53 is called a third bypass air path 73, and the flow paths of the wind in the fourth dehumidifying path 54 are called a first bypass air path 74 and a second bypass air path 75. In other words, it can also be said that the air passage 34 is composed of a first air path 71, a second air path 72, a third bypass air path 73, a first bypass air path 74 and a second bypass air path 75. The first air path 71, the second air path 72, the third bypass air path 73, the first bypass air path 74 and the second bypass air path 75 will be described later.

[0126] The dehumidifying unit 5 is composed of a refrigeration cycle in which a compressor 7, a radiator 8, an expander 9, and an absorber 10 are sequentially connected in a loop. In the refrigeration cycle, for example, a refrigerant substitute for Freon (HFC134a) is used as the refrigerant. The refrigerant discharged from the compressor 7 flows downward through the inside of the radiator 8 via the refrigerant pipe 80. Therefore, the temperature of the radiator 8 is higher on the upper side. The refrigerant discharged from the radiator 8 is supplied to the absorber 10 via the expander 9. The refrigerant supplied to the absorber 10 flows upward through the inside of the absorber 10 and flows into the compressor 7 through the refrigerant pipe 83. In addition, since the refrigeration cycle is well-known, detailed description is omitted.

[0127] In the main body case 1, the absorber 10 is provided on the air suction port 2 side, which is the upstream side of the air flow of the air passage 34, and the radiator 8 is provided on the air blowout port 4 side, which is the downstream side of the air flow of the air passage 34. The sensible heat type heat exchanger 11 is arranged in the space between the absorber 10 and the radiator 8. In other words, the absorber 10, the heat exchanger 11, and the radiator 8 are arranged in this order from the upstream side to the downstream side of the air flow of the air passage 34.

[0128] As Figure 2 shown, the heat exchanger 11 has a first lateral passage 17 through which a first part 61 of the intake air 60 passes, and a second longitudinal passage 18 through which a second part 62 of the intake air 60 passes. The first passage 17 and the second passage 18 are independent air passage spaces. The structure or shape of the heat exchanger 11 is not limited. As an example, the heat exchanger 11 stacks a plurality of resin plates (not shown). The first passage 17 and the second passage 18 are formed between the stacked plurality of plates. The heat exchanger 11 can perform heat exchange between the first part 61 passing through the first passage 17 and the second part 62 passing through the second passage 18. As an example, the heat exchanger 11 has a rectangular parallelepiped shape.

[0129] A first part 61, which is a part of the intake air 60, is blown out of the main body case 1 from the air blowout port 4 via the absorber 10, the first passage 17 of the heat exchanger 11, the radiator 8, and the blower 6. The flow path of the first part 61 is the above-mentioned first air passage 71. A second part 62, which is a part of the intake air 60, is blown out of the main body case 1 from the air blowout port 4 via the second passage 18 of the heat exchanger 11, the radiator 8, and the blower 6. The path of the second part 62 is the above-mentioned second air passage 72.

[0130] The first part 61 is first cooled by the heat absorber 10. At this time, dew condensation occurs on the first part 61 to generate dew condensation water. The dew condensation water drips downward to the heat absorber 10 and the heat exchanger 11 and is collected in the funnel-shaped water collection part 12a arranged below the heat absorber 10 and the heat exchanger 11. The dew condensation water collected in the water collection part 12a flows into the water collection tank 12b arranged below the water collection part 12a. The water collection tank 12b can be easily installed and removed on the main body case 1.

[0131] The first part 61 that is cooled by heat exchange and flows in the first passage 17 reduces the temperature of the second part 62 that flows in the second passage 18. As a result, dew condensation also occurs on the second part 62 that does not pass through the heat absorber 10 to generate dew condensation water. The dew condensation water drips downward from the second passage 18 to the heat exchanger 11 and is collected by the funnel-shaped water collection part 12a and flows into the water collection tank 12b.

[0132] In the embodiment, the heat exchanger 11 sets the ventilation resistance of the second passage 18 to be larger than that of the first passage 17. As a result, the air volume of the second part 62 flowing through the second passage 18 is smaller than the air volume of the first part 61 flowing through the first passage.

[0133] The first part 61 dried after dew condensation is blown out of the main body case 1 from the air outlet 4. In addition, the second part 62 dried after dew condensation is blown out of the main body case 1 from the heat exchanger 11 via the radiator 8 and the blower 6 from the air outlet 4. Thus, the dehumidifying device 100 reduces the humidity of the surrounding space.

[0134] [Third bypass air passage]

[0135] Next, the third bypass air passage 73 will be described. As Figure 4 shown, the third bypass air passage 73 is a bypass air passage that blows out a third part 63, which is a part of the intake air 60, to the outside of the main body case 1 from the air outlet 4 via a specific part 88 of the radiator 8 without passing through the heat absorber 10 and the heat exchanger 11. In other words, the third bypass air passage 73 is a bypass air passage in which a third part 63, which is a part of the intake air 60, bypasses the heat absorber 10 and the heat exchanger 11 and flows.

[0136] In the embodiment, the third bypass air passage 73 is provided on the upper side of the first bypass air passage 74 and the second bypass air passage 75. The third bypass air passage 73 blows out a third part 63, which is a part of the intake air 60, to the outside of the main body case 1 from the air outlet 4 via the upper part 8a of the radiator 8 without passing through the heat absorber 10 and the heat exchanger 11. In this case, since the upper part 8a of the radiator 8 is cooled by the third part 63, the cooling capacity of the radiator 8 is improved. Therefore, the dehumidifying capacity of the dehumidifying device 100 is improved, and power consumption can be further reduced.

[0137] The upper part 8a of the radiator 8 refers to the part above the center of the radiator 8 in the up-and-down direction. In the embodiment, the radiator 8 protrudes more upward than the upper end of the heat absorber 10 or the upper end of the heat exchanger 11, and this protruding part is referred to as the upper part 8a.

[0138] There is a third bypass air passage 73, whereby the third part 63 cools the upper part 8a after passing through the upper part 8a of the radiator 8. The heat absorber 10 is cooled by the refrigeration cycle of the dehumidifying section 5, and by applying the cooling effect of the third bypass air passage 73 to the upper part 8a, the dehumidifying ability of the dehumidifying device 100 can be further improved. The refrigerant that becomes high temperature in the compressor 7 first flows into the upper part 8a side of the radiator 8, so the temperature of the upper part 8a is higher than other parts. Therefore, by cooling the upper part 8a with the third part 63, the radiator 8 can be effectively cooled. In addition, the first part 61 and the second part 62 pass through the part below the upper part 8a of the radiator 8.

[0139] [First and second bypass air passages]

[0140] Next, refer to Figure 5 、 Figure 6 to explain the first bypass air passage 74 and the second bypass air passage 75. Figure 5 is a perspective view of the radiator 8 as viewed from the right front. Figure 6 is a view of the radiator 8 as viewed from the back. The first bypass air passage 74 and the second bypass air passage 75 are air passages through which a fourth part 64, which is part of the intake air 60, flows around the heat absorber 10 and the heat exchanger 11.

[0141] The radiator 8 has a refrigerant pipe 80, which is composed of a pipe through which the refrigerant of the refrigeration cycle flows. The refrigerant pipe 8 undergoes a refrigeration cycle. The refrigerant pipe 80 respectively has a plurality of main refrigerant pipes 81a extending left and right, a first U-shaped pipe 81b connecting between the plurality of main refrigerant pipes, and a second U-shaped pipe 81c. The first U-shaped pipe 81b is provided on one side of the radiator 8. The second U-shaped pipe 81c is provided on the other side of the radiator 8. In the dehumidifying device 100, air passages surrounding the first U-shaped pipe 81b and the second U-shaped pipe 81c are provided. The air passage surrounding the first U-shaped pipe 81b is referred to as the first bypass air passage 74, and the air passage surrounding the second U-shaped pipe 81c is referred to as the second bypass air passage 75. In the embodiment, an example in which both the first bypass air passage 74 and the second bypass air passage 75 are provided is shown, but only one of the first bypass air passage 74 and the second bypass air passage 75 may be provided.

[0142] Here, the first bypass air passage 74 and the second bypass air passage 75 are specifically described. Here, the first bypass air passage 74 is mainly described, but the description of the first bypass air passage 74 can also be applied to the second bypass air passage 75. In this case, the first U-shaped pipe 81b is replaced by the second U-shaped pipe 81c. AsFigure 5 , Figure 6 As shown in Figure 6 , the radiator 8 has a resin outer frame 84 that supports the refrigerant pipe 80. A first bypass air passage 74 and a second bypass air passage 75 are provided on the side portion of the outer frame 84. A radiator side cylinder portion 85 is provided in front of the outer frame 84. The radiator side cylinder portion 85 extends forward from the radiator 8 toward the heat exchanger 11. The radiator side cylinder portion 85 is formed so as to surround a part or all of the heat exchanger 11. The outer frame 84, the first bypass air passage 74, the second bypass air passage 75, and the radiator side cylinder portion 85 are integrally formed by resin molding.

[0143] The radiator side cylinder portion 85 is integrally constituted by four plate-like protruding members that protrude forward from the upper, lower, left, and right four edges of the outer frame 84. The radiator side cylinder portion 85 is constituted by an upper protruding member 85a on the upper side, a right protruding member 85b on the right side, a lower protruding member 85c on the lower side, and a left protruding member 85d on the left side. In particular, as Figure 5 shown in Figure 5 , a plurality of rectangular openings 86 arranged horizontally are formed on the upper protruding member 85a. The plurality of rectangular openings 86 open upward. The second part 62 flows from top to bottom through the plurality of rectangular openings 86.

[0144] The first bypass air passage 74 is constituted by a hollow square cylinder-shaped member that extends vertically on the side portion of the outer frame 84 and is provided so as to surround the first U-shaped pipe 81b. The first bypass air passage 74 has a first opening 74a into which the fourth part 64 flows. The first opening 74a in the embodiment is provided in the upper part of the first bypass air passage 74. The first opening 74a is provided on the upper side of the vertical center of the first bypass air passage 74. In addition, when the vertical length of the first bypass air passage 74 is 100%, the first opening 74a is preferably provided within the range of 30% from the upper end. The first opening 74a in the embodiment is a rectangular opening that opens upward at the upper end of the first bypass air passage 74.

[0145] The first bypass air passage 74 communicates with a radiator gap 19 (refer to Figure 2 ) that is a gap provided between the heat exchanger 11 and the radiator 8. As Figure 3 shown in Figure 3 , the fourth part 64, which is a part of the intake air 60, is sucked from the first opening 74a, flows downward in the first bypass air passage 74, and flows into the radiator gap 19. The fourth part 64 that flows into the radiator gap 19 diffuses vertically and horizontally in the radiator gap 19. The diffused fourth part 64 flows into the radiator 8 from one surface 8c on the front side of the radiator 8 and cools the radiator 8. The fourth part 64 that has cooled the radiator 8 is blown out of the air outlet 4 to the outside of the main body case 1.

[0146] As a fourth part 64 of the intake air 60, after passing through the radiator gap 19 from the first bypass air passage 74, it flows into the radiator 8. Therefore, the air flows toward the entire radiator 8, and the cooling deviation of the radiator 8 is reduced. As a result, the cooling capacity of the radiator 8 is improved, so the dehumidifying capacity of the dehumidifying device 100 is improved. Consequently, if the dehumidifying capacity is the same, the power consumption of the dehumidifying device can be reduced.

[0147] The first bypass air passage 74 may also communicate with the radiator gap 19 at a position above the upper and lower center of the first bypass air passage 74, but in the embodiment, it communicates with the radiator gap 19 at a position below the upper and lower center.

[0148] In the embodiment, a second bypass air passage 75 surrounding the second U-shaped tube 81c is further included. The second bypass air passage 75 has a second opening 75a similar to the first opening 74a. Therefore, the fourth part 64 passes through the radiator gap 19 from the first bypass air passage 74 and the second bypass air passage 75, and air flows into the radiator 8 from both the left and right sides. As a result, by reducing the left-right deviation of the air flowing into the radiator 8, the left-right deviation of the cooling of the radiator 8 is further reduced. By reducing the cooling deviation, the cooling capacity for the radiator 8 is improved, so the dehumidifying capacity of the dehumidifying device 100 is improved, and the power consumption can be further reduced.

[0149] With the first bypass air passage 74 and the second bypass air passage 75, the fourth part 64 cools the radiator 8. The dehumidifying device 100 cools the heat absorber 10 through the refrigeration cycle of the dehumidifying part 5, and by applying the cooling effect of the first bypass air passage 74 and the second bypass air passage 75 on the radiator 8, the dehumidifying capacity can be further improved.

[0150] The first opening 74a in the embodiment is provided at the upper part of the first bypass air passage 74, and the second opening 75a is provided at the upper part of the second bypass air passage 75. In this way, by providing the first opening 74a and the second opening 75a at the upper part, the wind blows to the upper side of the radiator 8. Since the upper side of the radiator 8 is relatively higher in temperature than the lower side, by blowing the wind to the upper side of the radiator 8, the ability to cool the radiator 8 can be improved. Therefore, the dehumidifying capacity of the dehumidifying device 100 can be improved, and the power consumption can be reduced.

[0151] As described above, the air inlets 2 are provided one on each of the left and right sides of the side surface 21 of the main body case 1. In this case, the air easily flows, the cooling capacity of the radiator 8 is improved, so the dehumidifying capacity of the dehumidifying device 100 can be improved, and the power consumption can be reduced.

[0152] [Damper]

[0153] Next, with reference to FIGS. 7 to Figure 10 the damper 40 will be described. Figure 7AIt is a perspective view of the air damper 40 showing the first example. Figure 7B It is a perspective view of the air damper 40 (hereinafter referred to as the air damper 40(2)) showing the second example. FIG. 8 is a side view schematically showing the operation of the air damper 40 of the first example, and FIG. 9 is a side view schematically showing the operation of the air damper 40(2) of the second example. The state in which the air damper 40 is opened is referred to as the "open state", and the state in which the air damper 40 is closed is referred to as the "closed state".

[0154] As Figure 7A shown, the air damper 40 of the first example has a first blade 41 that opens and closes the third bypass air passage 73, a second blade 42 that opens and closes the second air passage 72, and a shaft portion 43 that supports the root ends of the first blade 41 and the second blade 42. The first blade 41 and the second blade 42 are rectangular plate-like portions extending radially outward from the shaft portion 43, and they can be integrally formed by resin molding. On the other hand, as Figure 7B shown, the difference between the air damper 40(2) of the second example and the air damper 40 of the first example is that it does not have the second blade 42 that opens and closes the second air passage 72. In addition, the other structure of the air damper 40(2) of the second example is the same as that of the air damper 40 of the first example. Hereinafter, the air damper 40 of the first example will be mainly described, but except for the function of the second blade 42 included in the description of the air damper 40 of the first example, the following description of the air damper 40 can also be applied to the air damper 40(2) of the second example.

[0155] The third bypass air passage 73 supplies a third part 63, which is a part of the intake air 60, to the radiator 8 without passing through the heat absorber 10 and the heat exchanger 11. As a result, a specific part 88 of the radiator 8 is cooled, so the dehumidifying ability can be improved. However, if the radiator 8 is cooled, the heat absorber 10 is also cooled by the refrigeration cycle. Therefore, in the case of low temperature, the radiator 8 is overcooled and the heat absorber 10 freezes, and the dehumidifying ability may instead decrease.

[0156] Therefore, in the embodiment, an air damper 40 that opens and closes the third bypass air passage 73 is provided in the third bypass air passage 73. In addition, as Figure 2 shown, the dehumidifying device 100 has a temperature sensor 48 that detects the temperature of the intake air 60. In this case, the air damper 40 is opened and closed according to the temperature detected by the temperature sensor 48. By opening and closing the air damper 40, the air volume balance between the first air passage 71 and the third bypass air passage 73 can be adjusted, so the dehumidifying ability can be improved.

[0157] Figure 10It is a block diagram of a damper control system 44 that controls the opening and closing of a damper 40. The dehumidifying device 100 has a control unit 46 that controls the opening and closing of the damper 40 based on the detected temperature of a temperature sensor 48. The control unit 46 includes: an arithmetic unit 46a that calculates the difference between the detected temperature Tx of the temperature sensor 48 and a reference temperature Ts, and a drive unit 46b that opens and closes the drive damper 40 based on the difference between the detected temperature Tx and the reference temperature Ts.

[0158] When the detected temperature Tx of the temperature sensor 48 is less than the reference temperature Ts (at low temperatures), as Figure 8A shown, the control unit 46 closes the damper 40 to reduce the air volume of the third bypass air passage 73 and increase the air volume of the first air passage 71. In addition, when the detected temperature Tx of the temperature sensor 48 is equal to or higher than the reference temperature Ts (at high temperatures), as Figure 8B shown, the control unit 46 opens the damper 40 to increase the air volume of the third bypass air passage 73. In addition, in the open state, the air volume of the first air passage 71 is reduced compared to the closed state.

[0159] In this structure, since the air volume of the first air passage 71 passing through the heat absorber 10 increases at low temperatures, the temperature of the heat absorber 10 rises, and it is difficult for the heat absorber 10 to freeze. Therefore, it is possible to suppress a decrease in dehumidifying ability due to freezing of the heat absorber 10. In addition, since the air volume of the third bypass air passage 73 passing through the radiator 8 increases at high temperatures, the temperature of the radiator 8 drops, and power consumption is suppressed. In addition, since the temperature of the radiator 8 drops, the temperature of the heat absorber 10 also drops, and dew condensation is likely to occur, so the dehumidifying ability can be improved.

[0160] The reference temperature Ts can be set in advance through experiments or simulations to obtain desired characteristics. In addition, the reference temperature Ts can also be set by the user from the operation unit 25. The reference temperature Ts represents a threshold value.

[0161] From the viewpoint of effectively cooling the radiator 8, the specific part 88 is preferably the relatively high-temperature part of the radiator 8. Therefore, the specific part 88 in the embodiment is the upper part 8a of the radiator 8. In this case, on the refrigerant path of the refrigeration cycle, the temperature of the upper part 8a of the radiator 8 is higher than that of the lower part of the radiator 8, and the temperature difference from the indoor air is large. Therefore, by bringing the indoor air into contact with the upper part 8a of the radiator 8, the radiator 8 can be effectively cooled. As a result, the dehumidifying ability of the dehumidifying device 100 is improved, and the power consumption of the dehumidifying device 100 can be reduced. As described above, the upper part 8a of the radiator 8 is a part above the upper and lower center of the radiator 8, and is a part that protrudes more upward than the upper end of the heat absorber 10 or the upper end of the heat exchanger 11.

[0162] In order to dry the clothes, the dehumidifying device 100 is preferably arranged directly below the hung clothes. Therefore, the specific part 88 can also be a part near either the left or right end of the radiator 8. Figure 11 It is a diagram schematically showing another example of the specific part 88 of the radiator 8. Figure 11 In another example, the specific part 88 is a part near the left end of the radiator 8, and is a lateral protrusion 8e that protrudes more to the left than the left end of the heat absorber 10 or the left end of the heat exchanger 11. In this case, compared with the case where the specific part 88 is the upper part 8a of the radiator 8, the height of the main body case 1 can be reduced. Therefore, the dehumidifying device 100 with the reduced height of the main body case 1 can be easily arranged directly below the hung clothes, so the convenience is increased.

[0163] In addition, in order to avoid freezing of the heat absorber 10, it is preferable to increase the air volume of the first air passage 71 at low temperatures. Therefore, in the embodiment, the air volume of the second air passage 72 in the state where the air damper 40 is closed is smaller than the air volume of the second air passage 72 in the state where the air damper 40 is open. In this case, since the air volume of the first air passage 71 is larger in the closed state than in the open state, the heat absorber 10 is difficult to freeze. In addition, since the air volume of the second air passage 72 is reduced, the temperature at the outlet of the heat exchanger 11 decreases, and dew condensation is likely to occur, improving the dehumidifying ability.

[0164] For example, when viewed from the side, the second blade 42 is arranged at about 120° circumferentially apart from the first blade 41. That is, the air damper 40 of the embodiment has an L-shaped cross section when viewed from the direction along the rotation axis La. In this case, the second air passage 72 and the third bypass air passage 73 can be closed by one air damper 40. In addition, the shape of the air damper 40 is a shape in which air easily flows into the second air passage 72 and the third bypass air passage 73 in the open state, and is a shape that does not close the second air passage 72. The shape of the air damper 40 can be set through experiments or simulations to obtain these characteristics.

[0165] The air damper 40 can rotate around the rotation axis La. The first blade 41 and the second blade 42 move circumferentially by rotating the drive shaft portion 43 around the rotation axis La by using a rotation actuator (not shown). As Figure 8A shown, when the first blade 41 is at the 12 o'clock position, the first blade 41 closes the third bypass air passage 73. On the other hand, when the first blade 41 is at the 12 o'clock position, the second blade 42 closes a part of the second air passage 72. As Figure 8B shown, when the first blade 41 is at the 2 o'clock position, the first blade 41 opens the third bypass air passage 73, and the second blade 42 opens the second air passage 72.

[0166] Consider arranging the position of the air damper 40 at a position higher than that of the heat exchanger 11 to prevent interference between the second blade 42 and the upper part of the heat exchanger 11 when the air damper 40 is opened and closed. However, in this case, the height of the main body case 1 becomes higher. Therefore, in the heat exchanger 11 of the embodiment, as shown in FIG. 8, there is an inclined portion 11c that can avoid interference with the rotation area of the air damper 40. In this case, the height of the main body case 1 can be suppressed. Even in the case of having the inclined portion 11c, a part of the radiator 8 can be closed by the second blade 42 in the closed state, and the air volume of the second air passage 72 can be reduced to about 1 / 2.

[0167] The shape of the inclined portion 11c can be set through experiments or simulations. The inclined portion 11c in the air damper 40 of the first example has a backward inclination with a gradually decreasing height toward the rear side.

[0168] When the air suction port 2 is arranged on the opposite side of the suction port 68 of the blower 6 with the heat absorber 10 therebetween, the air in the first part 61 is deflected toward the center of the heat absorber 10. Due to the deflection of the air, it is difficult for dew to form on the periphery of the heat absorber 10 and the radiator 8, and the dehumidifying ability is reduced. Therefore, the air suction ports 2 are respectively provided on the left and right side faces 21 of the main body case 1. At this time, the deviation of the air flowing into the heat absorber 10 is uniform, and by allowing the air flow to pass through the entire heat absorber 10, the dew formation area can be increased and the dehumidifying ability can be improved.

[0169] In the embodiment, as Figure 2 shown, in order to smoothly guide the inhaled air 60 from the side face 21 to the heat absorber 10, there is a heat absorber gap 15 between the front surface portion 22 of the main body case 1 and the heat absorber 10. If the heat absorber gap 15 is too large, the balance of the air volume in each path deteriorates. Therefore, the opening area of the heat absorber gap 15 is smaller than the relative area where the heat absorber 10 faces the front surface portion 22 and larger than the area where a specific part 88 faces the rear surface portion 23 of the main body case 1. In this case, since the air volume of the first air passage 71 is reduced and the air volume of the third bypass air passage 73 is increased, the dehumidifying ability of the dehumidifying device 100 is improved and the power consumption is suppressed.

[0170] The above is the description of the air damper 40.

[0171] [Heat absorber gap]

[0172] Next, with reference to Figures 12 to 14 the heat absorber gap 15 will be described. Figure 12It is a front view schematically showing the outline of the air inlet 68 of the air blower 6 and the outline of the heat absorber 10. From the viewpoint of generating dew condensation in the entire heat absorber 10, it is preferable that the air flowing into the heat absorber 10 diffuses to the entire heat absorber 10 before flowing into the heat absorber 10. As described above, the dehumidifying device 100 is provided with a heat absorber gap 15 between the front surface portion 22 of the main body case 1 and the heat absorber 10. However, depending on the shape of the heat absorber gap 15, the diffusion effect may not be sufficiently obtained sometimes. Therefore, in the air inlet 68 of the air blower 6 in the embodiment, it is smaller than the heat absorber 10 when viewed from the front. In addition, the center 68c of the air inlet 68 is arranged at the same position as the left-right center 10c of the heat absorber 10. At this time, compared with the case where the air suction port 2 is arranged facing the heat absorber 10, the air diffuses in the heat absorber gap 15 and flows in. Therefore, the deviation of the air flow direction toward the center is reduced, and dew condensation is generated by diffusing to the entire heat absorber 10 or the radiator 8, thereby improving the dehumidifying ability.

[0173] The heat absorber side cylinder portion 16 will be described. Figure 13 It is a perspective view schematically showing the heat absorber 10, the heat absorber side cylinder portion 16, and the front surface portion 22, and is a view observed from the right rear obliquely.

[0174] Figure 14 It is a perspective view schematically showing the heat absorber 10 and the heat absorber side cylinder portion 16, and is a view observed from the right front obliquely. In Figure 14 it, the front surface portion 22 is indicated by a dotted line.

[0175] In the embodiment, a heat absorber side cylinder portion 16 surrounding the outer periphery of the heat absorber 10 is provided. The heat absorber side cylinder portion 16 is integrally formed by two left and right plate-shaped side surface portions 16b and a plate-shaped upper surface portion 16c connecting the upper ends of the two side surface portions 16b. As Figure 14 shown, the heat absorber side cylinder portion 16 extends a distance 16g from the outer periphery of the heat absorber 10 toward the front surface portion 22. In addition, a heat absorber gap 15 is formed between the extending end 16a of the heat absorber side cylinder portion 16 and the front surface portion 22. In this case, since a space 16h surrounded by the heat absorber side cylinder portion 16 is formed between the heat absorber 10 and the front surface portion 22, the air can flow in smoothly. Thereby, the air flows into the center of the heat absorber 10 in this space, and the air flow direction expands to the entire space. Therefore, dew condensation is generated in the entire heat absorber 10, and the dehumidifying ability of the dehumidifying device 100 is improved.

[0176] In the heat absorber side cylinder portion 16, the distance 16g extending from the outer periphery of the heat absorber 10 can be, for example, 5 mm or more and 50 mm or less. The distance 16g in the embodiment is set to 25 mm. In addition, the width of the heat absorber gap 15 in the front-rear direction can be 5 mm or more and 20 mm or less. The width of the heat absorber gap 15 in the front-rear direction in the embodiment is set to 10 mm.

[0177] In an embodiment, the heat absorber side cylinder portion 16 (e.g., the upper surface portion 16c) contacts the front surface portion 22. The heat absorber gap 15 includes openings 16e formed in the left and right side surface portions 16b of the heat absorber side cylinder portion 16. Further, in the embodiment, since the wind in the second air passage 72 and the wind in the first air passage 71 can be separated respectively, noise caused by wind interference can be suppressed. Further, by reducing the wind turbulence, the air volume of the second air passage is increased, and the dehumidifying ability is improved. As an example, the opening 16e has a rectangular shape that is longer in the vertical direction than in the front-rear direction.

[0178] In the embodiment, the opening 16e is disposed on the front side of the front-rear center of the heat absorber side cylinder portion 16. At this time, since the opening 16e is away from the heat absorber 10 toward the front, the wind of the first part 61 flowing in from the opening 16e is easily diffused. Since dew condensation occurs in the entire heat absorber 10, the dehumidifying ability is improved.

[0179] In the embodiment, as Figure 14 shown, a part of the refrigerant pipe 83 extending from the heat absorber 10 to the compressor 7 and the U-shaped pipe 83b are disposed inside the heat absorber side cylinder portion 16. At this time, since a part of the refrigerant pipe 83 also performs heat exchange and dew condensation occurs in the intake air, the overall dehumidifying ability is improved.

[0180] In this way, heat absorbing components such as the heat absorber 10, the refrigerant pipe 83, and the first U-shaped pipe 83b are surrounded by the heat absorber side cylinder portion 16, so the air between the main body case 1 and the heat absorber side cylinder portion 16 hardly contacts the heat absorbing components. Therefore, it is difficult to generate dew condensation on the main body case 1 or its periphery, and moisture around the main body case 1 can be prevented.

[0181] The heat absorber gap 15 in the embodiment is provided in the left and right side surface portions 16b of the heat absorber side cylinder portion 16. When viewed from the front (front view), the left and right heat absorber gaps 15 are arranged symmetrically about the left and right. At this time, the wind from the left and right side surface portions 16b is equally sucked into the heat absorber side cylinder portion 16 and diffused. Therefore, dew condensation occurs in the entire heat absorber 10, and the dehumidifying ability of the dehumidifying device 100 is improved.

[0182] The left and right heat absorber gaps 15 in the embodiment are arranged at equal distances from the left and right centers of the heat absorber side cylinder portion 16. At this time, the wind from the left and right side surface portions 16b is sucked in more evenly, which is beneficial to improving the dehumidifying ability.

[0183] Referring to FIG. 15, the guide surface 16j of the heat absorber side cylinder portion 16 will be described. FIG. 15 is a schematic top view showing the heat absorber side cylinder portion 16. Figure 15A The heat absorber side cylinder portion 16 having the guide surface 16j is shown. Figure 15BThe absorber-side cylinder part 16 without the guide surface 16j is shown. The absorber-side cylinder part 16 in the embodiment has a guide surface 16j that guides a first part 61, which is a part of the intake air 60 inhaled from the air intake 2, into the absorber gap 15. In this case, since the air is guided to the absorber gap 15 along the guide surface 16j, the intake resistance of the absorber gap 15 can be reduced. As long as the air from the air intake 2 can be smoothly guided to the absorber gap 15, the shape of the guide surface 16j is not limited. The shape of the guide surface 16j in the embodiment is a conical surface that removes the corner part on the front side of the absorber-side cylinder part 16 and gradually decreases in width from left to right as it approaches the front surface part 22.

[0184] The above is the description of the absorber gap 15.

[0185] The operation of the dehumidifying device 100 in this embodiment will be described. When the fan 6 operates, the intake air 60 is inhaled into the main body case 1 from the air intake 2 provided on the side surface part 21. The intake air 60 is respectively divided into a first part 61, a second part 62, a third part 63, and a fourth part 64. The first part 61 flows through the first passage 17 of the absorber 10 and the heat exchanger 11 and into the radiator 8 to cool the radiator 8. The second part 62 flows through the second passage 18 of the heat exchanger 11 and into the radiator 8 to cool the radiator 8.

[0186] The third part 63 flows through the third bypass air passage 73 that bypasses the absorber 10 and the heat exchanger 11 and into the radiator 8 to cool the radiator 8. The fourth part 64 flows into the radiator 8 through the radiator gap 19 from the first bypass air passage 74 and the second bypass air passage 75 that bypass the absorber 10 and the heat exchanger 11 to cool the radiator 8. The first part 61, the second part 62, the third part 63, and the fourth part 64 after cooling the radiator 8 are blown out of the main body case 1 from the air outlet 4 via the fan 6.

[0187] The first part 61 and the second part 62 of the intake air 60 are cooled by the absorber 10 or the heat exchanger 11 of the refrigeration cycle, resulting in condensation and drying. The dried first part 61 and second part 62 are blown out from the air outlet 4, thereby reducing the humidity of the space around the dehumidifying device 100.

[0188] Describe the features of the dehumidifying device 100 in this embodiment. The dehumidifying device 100 includes a main body case 1 having an air suction port 2 and an air blow-out port 4. In the main body case 1, an absorber 10, a heat exchanger 11, a radiator 8, and a blower 6 are arranged in the front-rear direction. The dehumidifying device 100 has: a first dehumidifying path 51 which, by the action of the blower 6, blows a first portion 61 of the intake air 60 sucked into the main body case 1 from the air suction port 2 to the outside of the main body case 1 through the absorber 10, the first passage 17 of the heat exchanger 11, and the radiator 8; and a second dehumidifying path 52 which blows a second portion 62 of the intake air 60 to the outside of the main body case 1 through the second passage 18 of the heat exchanger 11 and the radiator 8 from the air blow-out port 4. In addition, the dehumidifying device 100 includes a first bypass air passage 74 which is an air passage surrounding a first U-shaped tube 81b for refrigerant protruding from one side portion of the radiator 8, communicates with a radiator gap 19 provided between the heat exchanger 11 and the radiator 8, and has a first opening 74a into which a fourth portion 64 of the intake air 60 flows.

[0189] According to this embodiment, by having the first bypass air passage 74, the cooling capacity of the radiator 8 can be improved, and the dehumidifying capacity of the dehumidifying device 100 can be improved. As a result, if having the same dehumidifying capacity, the power consumption of the dehumidifying device can be reduced.

[0190] The outline of one aspect of the present invention is as follows.

[0191] (Item 1)

[0192] A dehumidifying device (100) includes a main body case (1) having an air suction port (2) and an air blow-out port (4),

[0193] On the main body case (1), an absorber (10), a heat exchanger (11), a radiator (8), and a blower (6) are arranged in the front-rear direction,

[0194] The dehumidifying device has: a first dehumidifying path (51) which, by the action of the blower (6), blows a first portion (61) of the intake air (60) sucked into the main body case (1) from the air suction port (2) to the outside of the main body case (1) through the absorber (10), the first passage (17) of the heat exchanger (11), and the radiator (8); and

[0195] a second dehumidifying path (52) which blows a second portion (62) of the intake air (60) to the outside of the main body case (1) through the second passage (18) of the heat exchanger (11) and the radiator (8) from the air blow-out port (4),

[0196] The dehumidifying device (100) includes a first bypass air passage (74), which is an air passage surrounding a first U-shaped tube (81b) for refrigerant protruding from one side portion of the radiator (8), communicates with a radiator gap (19) provided between the heat exchanger (11) and the radiator (8), and has a first opening (74a) into which a fourth portion (64) of the intake air (60) flows.

[0197] (Item 2)

[0198] The dehumidifying device (100) according to Item 1 includes a second bypass air passage (75), which is an air passage surrounding a second U-shaped tube (81c) for refrigerant protruding from the other side portion of the radiator 8, communicates with the radiator gap (19), and has a second opening (75a) into which the fourth portion (64) flows.

[0199] (Item 3)

[0200] In the dehumidifying device (100) according to Item 2, the first opening (74a) is provided at the upper portion of the first bypass air passage (74), and the second opening (75a) is provided at the upper portion of the second bypass air passage (75).

[0201] (Item 4)

[0202] In the dehumidifying device (100) according to Item 1, air inlets (2) are respectively provided on the left and right side faces (21) of the main body case (1).

[0203] (Item 5)

[0204] In the dehumidifying device (100) according to Item 2, the dehumidifying device (100) includes a third bypass air passage (73), which is an air passage provided above the first bypass air passage (74) and the second bypass air passage (75). The third bypass air passage (73) blows a third portion (63) of the intake air (60) out of the main body case (1) from the air outlet (4) through the upper portion (8a) of the radiator (8) without passing through the heat absorber (10) and the heat exchanger (11).

[0205] As described above, the embodiments of the present invention have been described. Those skilled in the art should understand that the embodiments are exemplary, and various combinations of components and processing procedures can have various modification examples, and these modification examples are also within the scope of the present invention.

[0206] In the description of the embodiments, an example is shown in which the first bypass air passage 74 and the second bypass air passage 75 are square tube-shaped, but it is not limited thereto. The first bypass air passage 74 and the second bypass air passage 75 may be tube-shaped with various cross-sectional shapes such as circular, elliptical, and polygonal in addition to rectangular.

[0207] In the description of the embodiments, a structure is shown in which the air suction port 2 is provided on the side surface portion 21 of the main body case 1, but it is not limited thereto. The air suction port 2 may also be provided on the front surface portion 22 of the main body case 1.

[0208] In the description of the embodiments, a structure including the air damper 40 is shown, but the air damper 40 is not necessarily included.

Claims

1. A dehumidifying device, characterized in that: It includes a main body case having an air suction port and an air blowout port. In the main body case, a heat absorber, a heat exchanger, a radiator, and a blower are arranged in the front-rear direction. The dehumidifying device has: a first dehumidification path, which, under the action of the blower, blows a first part of the inhaled air inhaled from the air suction port into the main body case out of the main body case through the heat absorber, the first passage of the heat exchanger, and the radiator from the air blowout port. And a second dehumidification path, which blows a second part of the inhaled air out of the main body case through the second passage of the heat exchanger and the radiator from the air blowout port. The dehumidifying device includes a first bypass air passage, which is an air passage surrounding a first U-shaped tube for refrigerant protruding from one side of the radiator, communicates with a radiator gap provided between the heat exchanger and the radiator, and has a first opening for the fourth part of the inhaled air to flow in.

2. The dehumidifying device according to claim 1, characterized in that: It includes a second bypass air passage, which is an air passage surrounding a second U-shaped tube for refrigerant protruding from the other side of the radiator, communicates with the radiator gap, and has a second opening for the fourth part to flow in.

3. The dehumidifying device according to claim 2, characterized in that: The first opening is provided in the upper part of the first bypass air passage, and the second opening is provided in the upper part of the second bypass air passage.

4. The dehumidifying device according to claim 1, characterized in that: The air suction ports are respectively provided on the left and right side faces of the main body case.

5. The dehumidifying device according to claim 2, characterized in that: It has a third bypass air passage, which is an air passage provided above the first bypass air passage and the second bypass air passage. The third bypass air passage blows a third part of the inhaled air out of the main body case through the upper part of the radiator without passing through the heat absorber and the heat exchanger from the air blowout port.

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