Dehumidification device

Abstract

The invention provides a dehumidification device. The dehumidification device comprises a main body shell provided with an air suction port and an air blowing port. A heat absorber, a heat exchanger, a radiator and a fan are arranged in the main body shell. The dehumidification device comprises a first dehumidification path and a second dehumidification path, wherein the first dehumidification path is used for blowing a first part sucked into the main body shell from the air suction port out of the main body shell from the air blowing port through the heat absorber, a first passage of the heat exchanger and the radiator under the action of the fan; a second dehumidification path that blows the second portion out of the main body case from the air outlet through a second passage of the heat exchanger and the radiator; and a bypass air path that blows the third portion out of the main body case from the air outlet through the radiator without passing through the heat absorber and the heat exchanger. The bypass air path is provided with an air door for opening and closing the air path. The temperature sensor detects temperature.

Description

Technical Field

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

[0002] A dehumidifying device for reducing the humidity of a living space or the like is known. For example, Patent Document 1 describes a dehumidifying device including a dehumidifying unit, which is composed of a refrigeration cycle that sequentially connects a compressor, a radiator, an expander, and an absorber 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 a third air passage, but in the case of low temperature, there is a possibility that the radiator becomes overcooled, the absorber freezes, and the dehumidifying ability decreases.

[0007] The present invention provides a dehumidifying device that can maintain (sustain) the dehumidifying ability even in the case of low temperature.

[0008] The 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, an absorber, a heat exchanger, a radiator, and a blower are arranged in the main body case, and under the action of the blower, the inhaled air sucked into the main body case from the air suction port is divided into a first part, a second part, and a third part. The dehumidifying device has: a first dehumidification path for blowing out the first part of the inhaled air to the outside of the main body case from the air blow-out port via the absorber, the first passage of the heat exchanger, and the radiator; a second dehumidification path for blowing out the second part of the inhaled 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; and a bypass air passage for blowing out the third part of the inhaled air to the outside of the main body case from the air blow-out port via a specific part of the radiator without passing through the absorber and the heat exchanger. A damper for opening and closing the bypass air passage is provided in the bypass air passage, and a temperature sensor for detecting the temperature of the inhaled air is provided.

[0009] In addition, any combination of the above components, and a technical solution obtained by transforming the expression of the present invention among methods, devices, systems, recording media, computer programs, etc. is also effective as an aspect of the present invention.

[0010] Effects of the Invention

[0011] According to the present invention, a dehumidifying device that can maintain the dehumidifying ability even in the case of low temperature can be provided. Brief Description of the Drawings

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

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

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

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

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

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

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

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

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

[0021] Figure 8B It is schematically showing Figure 1 [[ID=X]]the function of the damper of the first example in the dehumidifying device.

[0022] Figure 9A It is schematically showing Figure 1 another view of the function of the damper of the second example in the dehumidifying device.

[0023] Figure 9B It is schematically showing Figure 1 another view of the function of the damper of the second example in the dehumidifying device.

[0024] Figure 10 It is showing a block diagram of the system for controlling the damper of the dehumidifying device Figure 1 where the reference number is missing in the original Chinese text.

[0025] Figure 11 It should be noted that there seems to be an error in the original text for item . It is likely that the text "the function of the damper of the first example in the dehumidifying device." was repeated by mistake in the original Chinese text, and the English translation for item should be the same as that for item for the sake of consistency. Also, for item , since the reference number is missing in the original Chinese text, it is indicated as such in the translation.A diagram schematically showing another example of a specific part of a radiator.

[0026] Figure 12 Schematically showing Figure 1 The front view of the suction port of the fan of the dehumidifying device and the heat absorber.

[0027] Figure 13 Schematically showing Figure 1 The perspective view of the heat absorber side cylinder part and the front surface part of the dehumidifying device.

[0028] Figure Schematically showing ​ The perspective view of the heat absorber side cylinder part and the heat absorber of the dehumidifying device.

[0029] ​ The top view schematically showing the heat absorber side cylinder part.

[0030] ​ The top view schematically showing the heat absorber side cylinder part.

[0031] ​ The perspective view schematically showing the dehumidifying device of Embodiment 2 of the present invention.

[0032] ​ Schematically showing along line B - B ​ The side sectional view of the dehumidifying device.

[0033] ​ Schematically showing ​ The diagram of the air passage of the dehumidifying device.

[0034] ​ Schematically showing ​ The diagram of the air flow of the dehumidifying device.

[0035] ​ Showing ​ The perspective view of the radiator of the dehumidifying device.

[0036] ​ Showing ​ The rear view of the radiator of the dehumidifying device.

[0037] ​ Is ​ The perspective view of the first example of the air damper in the dehumidifying device.

[0038] ​ Schematically showing ​ The diagram of the function of the first example of the air damper in the dehumidifying device.

[0039] ​ Schematically showing​ The figure showing the function of the air damper in the first example of the dehumidifying device.

[0040] ​ It shows the control ​ Block diagram of the system of the air damper of the dehumidifying device.

[0041] ​ It schematically shows ​ Front view of the suction port of the blower and the heat absorber of the dehumidifying device.

[0042] ​ It schematically shows ​ Stereogram of the heat absorber side cylinder part and the front surface part of the dehumidifying device.

[0043] ​ It schematically shows ​ Stereogram of the heat absorber side cylinder part and the heat absorber of the dehumidifying device.

[0044] ​ It shows ​ Exploded view of the heat exchanger of the dehumidifying device.

[0045] ​ It shows ​ Stereogram of the heat exchanger of the dehumidifying device.

[0046] ​ It is the upper protruding part covering ​ The upper surface of the heat exchanger of the dehumidifying device. Stereogram.

[0047] Explanation of reference numerals

[0048] 1 Main body case; 2 Air suction port

[0049] 4 Air blow-out port; 5 Dehumidifying part

[0050] 6 Blower; 7 Compressor

[0051] 8 Radiator; 8a Upper part

[0052] 8e Lateral protruding part; 9 Expander

[0053] 10 Heat absorber; 10c Left and right center

[0054] 11 Heat exchanger; 11c Inclined part

[0055] 12a Water collecting part; 12b Water collecting tank

[0056] 15 Heat absorber gap; 16 Heat absorber side cylinder part

[0057] 16a Extension end; 16b Side surface part (also called side surface part)

[0058] Upper surface part of 16c; Opening of 16e

[0059] Distance of 16g; Space of 16h

[0060] Guide surface of 16j; First passage of 17

[0061] Second passage of 18; Radiator gap of 19

[0062] Side surface part of 21; Front surface part of 22

[0063] Rear surface part of 23; Operation part of 25

[0064] Louver of 31; Electric motor of 32

[0065] Fan of 33; Air passage of 34

[0066] Damper of 40; First blade of 41

[0067] Second blade of 42; Shaft part of 43

[0068] Damper control system of 44; Control unit of 46

[0069] Operation part of 46a; Driving part of 46b

[0070] Temperature sensor of 48; First dehumidification path of 51

[0071] Second dehumidification path of 52; Third dehumidification path of 53

[0072] Fourth dehumidification path of 54; Inhaled air of 60[[ID=...]]

[0073] First part of 61; Second part of 62

[0074] Third part of 63; Fourth part of 64

[0075] Suction port of 68; Center of 68c

[0076] First air path of 71; Second air path of 72

[0077] Third bypass air path of 73; First bypass air path of 74

[0078] First opening of 74a; Second bypass air path of 75

[0079] Second opening of 75a; Refrigerant pipe of 80

[0080] Main refrigerant pipe of 81a; First U-shaped pipe of 81b[[ID=...]]

[0081] Second U-shaped pipe of 81c; Refrigerant pipe of 83

[0082] 83b U-shaped tube; 84 outer frame

[0083] 85 radiator side cylinder part; 85a upper protruding part

[0084] 85b right protruding part; 85c lower protruding part

[0085] 85d left protruding part; 86 rectangular opening

[0086] 88 specific part; 100 dehumidifying device

[0087] La rotation axis; 1001 main body case

[0088] 1002 air suction port; 1004 air blowout port

[0089] 1005 dehumidifying part; 1006 blower

[0090] 1007 compressor; 1008 radiator

[0091] 1008a upper part; 1009 expander

[0092] 1010 heat absorber; 1010c left and right center

[0093] 1011 heat exchanger; 1011a upper inclined surface

[0094] 1011c inclined part; 1012a water collecting part

[0095] 1012b water collecting tank; 1015 heat absorber gap

[0096] 1016 heat absorber side cylinder part; 1016a extended end

[0097] 1016b side surface part; 1016c upper surface part

[0098] 1016e opening; 1016g distance

[0099] 1016h space; 1017 first passage

[0100] 1017a upper first passage; 1017b lower first passage

[0101] 1018 second passage; 1019 radiator gap

[0102] 1021 side surface part; 1022 front surface part

[0103] 1023 rear surface part; 1025 operation part

[0104] 1031 louver; 1032 motor

[0105] 1033 fan; 1034 air passage

[0106] 1040 damper; 1041 first blade

[0107] 1042 second blade; 1043 shaft

[0108] 1044 damper control system; 1046 control unit

[0109] 1046a: Operation unit; 1046b: Drive unit

[0110] 1048 temperature sensor; 1051 first dehumidification path

[0111] 1052 second dehumidification path; 1053 third dehumidification path

[0112] 1054 fourth dehumidification path; 1060 intake air

[0113] 1061 Part 1; 1062 Part 2

[0114] 1063 Part 3; 1064 Part 4

[0115] 1068 air inlet; 1068c center

[0116] 1071 First Air Route; 1072 Second Air Route

[0117] 1073 Third bypass ventilation duct; 1074 First bypass ventilation duct

[0118] 1074a first opening; 1075 second bypass ventilation passage

[0119] 1075a second opening; 1080 refrigerant piping

[0120] 1081a main refrigerant pipe; 1081b first U-shaped pipe

[0121] 1081c second U-shaped tube; 1083 refrigerant piping

[0122] 1083b U-shaped tube; 1084 outer frame

[0123] 1085 radiator side cylinder; 1085a upper protruding part

[0124] 1085b right protruding part; 1085c lower protruding part

[0125] 1085d left protruding part; 1086 rectangular opening

[0126] 1088 Specific parts; 1100 Dehumidification equipment

[0127] X air; Y air

[0128] Lb axis of rotation. Detailed implementation mode

[0129] Hereinafter, a mode for implementing the present invention will be described with reference to the drawings. Each of the embodiments described below represents a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, arrangement positions and connection methods of the constituent elements, 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, constituent elements not described in the technical solution representing the most general 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.

[0130] In addition, ordinal terms such as first and second are used to describe a plurality of constituent elements, but the terms are only used to distinguish one constituent element from other constituent elements, and the terms do not limit the constituent elements.

[0131] (Embodiment 1)

[0132] Refer to ​ , and describe the schematic structure of the dehumidifying device 100 according to Embodiment 1 of the present invention. ​ is a perspective view showing the dehumidifying device 100 according to Embodiment 1. ​ is a cross-sectional view of the dehumidifying device 100 along the A-A line when viewed from the side along ​ .

[0133] As ​ shown, the dehumidifying device 100 according to the present Embodiment 1 has a box-shaped main body case 1 as an outer contour, and the inside and outside of the main body case 1 can be distinguished by the main body case 1. An air suction port 2 and an air blowout port 4 are provided in the main body case 1.

[0134] As ​ 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 and are arranged inside the main body case 1. The expression of the direction of the device in this specification is 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 called "front", the opposite side is called "rear", and the horizontal direction orthogonal to the front-rear direction is called "left-right direction".

[0135] Sometimes, the state observed from the front is referred to as "front view", the state observed from the rear is referred to as "rear view", the states observed from the left and right are referred to as "side views", and the state observed from above is referred to as "top view". Sometimes, the air flow generated by the action of the blower 6 is referred to as "wind", and the upstream and downstream of this air flow are sometimes referred to as "upwind" and "downwind". These expressions are not limited by the attitude of the dehumidifying device 100 during use, and the dehumidifying device 100 can be used in any attitude.

[0136] In the first embodiment, the front-rear width of the main body case 1 is smaller than the left-right width, and the up-down width is larger than the left-right width. Regarding the main body case 1, the part constituting the outer surface on the front side is referred to as the "front surface part", the part constituting the outer surface opposite to the front surface part is referred to as the "rear surface part", the parts constituting the outer surfaces on the left and right sides are referred to as the "side surface parts", and the part constituting the outer surface on the upper side is referred to as the "upper surface part".

[0137] 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 receives input from the user, for example, or displays information about the dehumidifying device such as the working mode or the current humidity to the user. In the front-rear direction, an absorber gap 15 is provided between the absorber 10 and the front surface part 22. In addition, a radiator gap 19 is provided between the radiator 8 and the heat exchanger 11.

[0138] In the first 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 grille. In the first embodiment, the air blowout port 4 is arranged on the rear side of the upper part of the main body case 1. A louver 31 for changing the direction of the air blown out from the air blowout port 4 is provided above the air blowout port 4.

[0139] The blower 6 includes 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 out 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 be blown out from the air blowout port 4 to the outside of the main body case 1. The path of this air is the air path 34.

[0140] When the air inlet 2 is arranged on the side opposite to the air inlet 68 of the blower 6 with the heat absorber 10 therebetween, the wind of the first part 61, which is a part of the intake air 60, is deflected toward the center of the heat absorber 10. Since the wind is deflected to one side, dew condensation is not likely to occur at the peripheral portions of the heat absorber 10 and the radiator 8, and the dehumidifying ability is reduced. Therefore, in the present Embodiment 1, 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 made 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.

[0141] In addition, as ​ 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 intake 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.

[0142] ​ is a diagram schematically showing the air passage 34 of the dehumidifying device 100. The intake air 60 is divided into a first part 61, a second part 62, a third part 63, and a fourth part 64, which are parts of the intake air 60, inside the main body case 1. ​ 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 ​ it shows the air flow (i.e., the flow of air) in the state where a damper 40 described later is open.

[0143] The air passage 34 in Embodiment 1 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.

[0144] The dehumidifying section 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 hydrofluorocarbon (HFC134a) is used as the refrigerant. The refrigerant discharged from the compressor 7 flows downward inside the radiator 8 through 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 inside the absorber 10 and flows into the compressor 7 through the refrigerant pipe 83. Among them, the refrigeration cycle is well known, so a detailed description is omitted.

[0145] Inside the main body case 1, the absorber 10 is provided on the air suction port 2 side which is upstream of the air flow in the air passage 34, and the radiator 8 is provided on the air blowout port 4 side which is downstream of the air flow in the air passage 34. The heat exchanger 11 is a sensible heat type and is disposed 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 in the air passage 34.

[0146] As shown in ​ FIG., the heat exchanger 11 has a first lateral passage 17 through which a first portion 61 of the intake air 60 passes, and a second longitudinal passage 18 through which a second portion 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 is configured to be able to perform heat exchange between the first portion 61 passing through the first passage 17 and the second portion 62 passing through the second passage 18. As an example, the heat exchanger 11 has a rectangular parallelepiped shape.

[0147] A first portion 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 portion 61 is the above-mentioned first air passage 71. A second portion 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 portion 62 is the above-mentioned second air passage 72.

[0148] 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 lower part of the heat absorber 10 and the heat exchanger 11, and is collected by 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 disassembled on the main body case 1.

[0149] The first part 61 flowing in the first passage 17 that has been cooled by heat exchange reduces the temperature of the second part 62 flowing in the second passage 18. As a result, dew condensation also occurs on the second part 62 that has not passed through the heat absorber 10 to generate dew condensation water. The dew condensation water drips downward from the second passage 18 to the lower part of the heat exchanger 11, and is collected by the funnel-shaped water collection part 12a and flows into the water collection tank 12b.

[0150] In the heat exchanger 11 in the first embodiment, the ventilation resistance of the second passage 18 is set to be larger than the ventilation resistance of the first passage 17. As a result, the air volume of the second part 62 flowing through the second passage 18 is less than the air volume of the first part 61 flowing through the first passage.

[0151] The first part 61 that has been dried after dew condensation is blown out of the main body case 1 from the air outlet 4. In addition, the second part 62 that has been 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.

[0152] (Third bypass air passage)

[0153] Next, the third bypass air passage 73 will be described. As ​ shown, the third bypass air passage 73 is an 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 an 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.

[0154] The third bypass air passage 73 in the first embodiment is provided at a position above 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 the power consumption can be further reduced.

[0155] The upper portion 8a of the radiator 8 refers to the portion above the center of the radiator 8 in the vertical direction. In the first embodiment, the radiator 8 protrudes to a position above the upper end of the heat absorber 10 or the upper end of the heat exchanger 11, and the protruding portion is referred to as the upper portion 8a.

[0156] By having the third bypass air passage 73, the third portion 63 cools the upper portion 8a through the upper portion 8a of the radiator 8. The heat absorber 10 is cooled by the refrigeration cycle of the dehumidifying section 5, and with the cooling effect on the upper portion �a by the third bypass air passage 73, the dehumidifying ability of the dehumidifying device 100 can be further improved. The refrigerant that has become high temperature in the compressor 7 first flows into the upper portion 8a side of the radiator 8, so the temperature of the upper portion 8a is higher than that of other portions. Therefore, by cooling the upper portion 8a by the third portion 63, the radiator 8 can be effectively cooled. In addition, the first portion 61 and the second portion 62 pass through a portion below the upper portion 8a of the radiator 8.

[0157] (First and second bypass air passages)

[0158] Next, refer to ​ 、 ​ to describe the first bypass air passage 74 and the second bypass air passage 75. Here, when the first bypass air passage 74 and the second bypass air passage 75 are collectively referred to, they are called the bypass air passage (74, 75). ​ is a perspective view showing the radiator 8 when viewed from the right front. ​ is a view showing the radiator 8 when viewed from the back. The bypass air passages 74, 75 are air passages through which the fourth portion 64, which is a part of the intake air 60, bypasses the heat absorber 10 and the heat exchanger 11 and flows.

[0159] The radiator 8 has a refrigerant pipe 80, which is composed of a pipe through which the refrigerant for the refrigeration cycle flows. The refrigerant pipe 80 has a plurality of main refrigerant pipes 81a extending left and right, and a first U-shaped pipe 81b and a second U-shaped pipe 81c connected between the plurality of main refrigerant pipes. The first U-shaped pipe 81b is provided on one side portion of the radiator 8. The second U-shaped pipe 81c is provided on the other side portion 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 called the first bypass air passage 74, and the air passage surrounding the second U-shaped pipe 81c is called the second bypass air passage 75. In the first embodiment, an example of providing both the first bypass air passage 74 and the second bypass air passage 75 is described, but either the first bypass air passage 74 or the second bypass air passage 75 may be provided alone.

[0160] Here, the bypass air passages (74, 75) will be specifically described. Here, the first bypass air passage 74 will be 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 tube 81b is replaced by the second U-shaped tube 81c. As ​ , ​ shown, the radiator 8 has a resin outer frame 84 that supports the refrigerant pipes 80. Bypass air passages (74, 75) are provided on the side portions 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 part or all of the heat exchanger 11. The outer frame 84, the bypass air passages (74, 75), and the radiator side cylinder portion 85 are integrally formed by resin molding (i.e., resin shaping).

[0161] The radiator side cylinder portion 85 is integrally constituted by four plate-shaped 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 ​ shown, a plurality of rectangular openings 86 arranged horizontally are formed in 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.

[0162] The first bypass air passage 74 is constituted by a hollow square tube-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 tube 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 first embodiment is provided in the upper part of the first bypass air passage 74. The first opening 74a is provided at a position above the vertical center of the first bypass air passage 74. Further, when the vertical length of the first bypass air passage 74 is set to 100%, the first opening 74a is preferably provided within a range of 30% from the upper end. The first opening 74a in the first embodiment is a rectangular opening that opens upward at the upper end of the first bypass air passage 74.

[0163] The first bypass air passage 74 communicates with a radiator gap 19 (refer to ​ ) that is a gap provided between the heat exchanger 11 and the radiator 8. As ​As shown, a fourth portion 64, which is part of the intake air 60, is inhaled from the first opening 74a, flows downward in the first bypass air passage 74, and flows into the radiator gap 19. The fourth portion 64 that has flowed into the radiator gap 19 diffuses in all directions (up, down, left, and right) within the radiator gap 19. The diffused fourth portion 64 flows into the radiator 8 from the front surface 8c of the radiator 8 and cools the radiator 8. The fourth portion 64 that has cooled the radiator 8 is blown out of the air outlet 4 to the outside of the main body case 1.

[0164] A fourth portion 64, which is part of the intake air 60, flows into the radiator 8 from the first bypass air passage 74 through the radiator gap 19. Therefore, the air flows toward the entire radiator 8, and the unevenness (i.e., bias to one side) of the cooling of the radiator 8 is reduced. As a result, the cooling capacity of the radiator 8 is improved, and thus, 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.

[0165] The first bypass air passage 74 may communicate with the radiator gap 19 at a position above the vertical center of the first bypass air passage 74, but in the first embodiment, it communicates with the radiator gap 19 at a position below the vertical center.

[0166] In the first embodiment, a second bypass air passage 75 that surrounds the second U-shaped tube 81c is also provided. The second bypass air passage 75 has a second opening 75a that is the same as the first opening 74a. Therefore, the fourth portion 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 unevenness (bias to one side) of the air flowing into the radiator 8, the left-right unevenness of the cooling of the radiator 8 is further reduced. By reducing the unevenness of the cooling, the cooling capacity of the radiator 8 can be improved, and thus, the dehumidifying capacity of the dehumidifying device 100 is improved, and the power consumption can be further reduced.

[0167] By having the bypass air passages (74, 75), the fourth portion 64 cools the radiator 8. The dehumidifying device 100 cools the heat absorber 10 through the refrigeration cycle of the dehumidifying unit 5 and has the cooling effect of the bypass air passages (74, 75) on the radiator 8, thereby being able to further improve the dehumidifying capacity.

[0168] The first opening 74a in the first embodiment is provided in the upper part of the first bypass air passage 74, and the second opening 75a is provided in the upper part of the second bypass air passage 75. In this way, by providing the first opening 74a and the second opening 75a in the upper part, the air blows to the upper side of the radiator 8. Since the upper side of the radiator 8 is relatively hotter than the lower side, by blowing the air 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.

[0169] As described above, one air suction port 2 is provided on each of the left and right sides of the side surface portion 21 of the main body case 1. In this case, air can flow easily, the cooling capacity of the radiator 8 is improved, so that the dehumidifying capacity of the dehumidifying device 100 can be improved and the power consumption can be reduced.

[0170] (Damper)

[0171] Next, with reference to FIGS. 7 to ​ the damper 40 will be described. ​ FIG. 8 is a perspective view of the damper 40 showing the first example. ​ FIG. 9 is a perspective view of the damper 40 (hereinafter, denoted as the damper 40(2)) showing the second example. FIG. 8 is a side view schematically showing the operation of the damper 40 of the first example, and FIG. 9 is a side view schematically showing the operation of the damper 40(2) of the second example. The state in which the damper 40 is open is referred to as the "open state", and the state in which the damper 40 is closed is referred to as the "closed state".

[0172] As ​ shown, the damper 40 of the first example has: a first blade 41 for opening and closing the third bypass air passage 73, a second blade 42 for opening and closing the second air passage 72, and a shaft portion 43 for supporting the root end sides 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 ​ shown, the damper 40(2) of the second example is different from the damper 40 of the first example in that it does not have the second blade 42 for opening and closing the second air passage 72. In addition, the other structure of the damper 40(2) of the second example is the same as that of the damper 40 of the first example. Hereinafter, the damper 40 of the first example will be mainly described, and the following description of the damper 40 can also be applied to the damper 40(2) of the second example except for the function of the second blade 42 included in the description of the damper 40 of the first example.

[0173] 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, since a specific part 88, which is a specific part of the radiator 8, is cooled, the dehumidifying capacity can be improved. However, when the radiator 8 is cooled, the heat absorber 10 is also cooled by the refrigeration cycle. Therefore, in the case of low temperature, there is a possibility that the radiator 8 is overcooled, the heat absorber 10 freezes, and the dehumidifying capacity is instead reduced.

[0174] Therefore, in the first embodiment, a damper 40 for opening and closing the third bypass air passage 73 is provided in the third bypass air passage 73. In addition, as ​As shown, the dehumidifying device 100 has a temperature sensor 48 that detects the temperature of the intake air 60. In this case, the damper 40 is opened and closed according to the temperature detected by the temperature sensor 48. By opening and closing the 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 capacity can be improved.

[0175] ​ It is a block diagram showing a damper control system 44 that controls the opening and closing of the damper 40. The dehumidifying device 100 has a control unit 46 that controls the opening and closing of the damper 40 according to the detected temperature of the temperature sensor 48. The control unit 46 has: an arithmetic unit 46a that calculates the difference between the detected temperature Tx of the temperature sensor 48 and the reference temperature Ts, and a drive unit 46b that opens and closes the drive damper 40 according to the difference between the detected temperature Tx and the reference temperature Ts.

[0176] When the detected temperature Tx of the temperature sensor 48 is less than the reference temperature Ts (at low temperature), as ​ 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 temperature), as ​ 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 smaller than in the closed state.

[0177] In this structure, since the air volume of the first air passage 71 passing through the heat absorber 10 increases at low temperature, the temperature of the heat absorber 10 rises, and it is difficult for the heat absorber 10 to freeze. Therefore, a decrease in dehumidifying capacity due to freezing of the heat absorber 10 can be suppressed. In addition, since the air volume of the third bypass air passage 73 passing through the radiator 8 increases at high temperature, the temperature of the radiator 8 drops, and power consumption can be suppressed. In addition, since the temperature of the radiator 8 drops, the temperature of the heat absorber 10 also drops, and dew condensation becomes easier, so the dehumidifying capacity can be improved.

[0178] The reference temperature Ts can be set in advance through experiments or simulations to obtain the required 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 by way of example.

[0179] From the viewpoint of effectively cooling the radiator 8, the specific portion 88 is preferably the relatively high-temperature portion of the radiator 8. Therefore, the specific portion 88 in Embodiment 1 is the upper portion 8a of the radiator 8. In this case, on the refrigerant path of the refrigeration cycle, the temperature of the upper portion 8a of the radiator 8 is higher than that of the lower portion of the radiator 8, and the temperature difference from the indoor air is large. Therefore, by allowing the indoor air to flow to the upper portion 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 portion 8a of the radiator 8 is a portion above the upper and lower centers of the radiator 8 and is a portion protruding upward from the upper end portion of the heat absorber 10 or the upper end portion of the heat exchanger 11.

[0180] In order to dry the clothes, the dehumidifying device 100 is preferably provided directly below the hung clothes. Therefore, the specific portion 88 may also be a portion near either the left or right end of the radiator 8. ​ It is a diagram schematically showing another example of the specific portion 88 of the radiator 8.

[0181] ​ The specific portion 88 in another example is a portion near the left end of the radiator 8 and is a laterally protruding portion 8e protruding leftward from the left end portion of the heat absorber 10 or the left end portion of the heat exchanger 11. In this case, compared with the case where the specific portion 88 is the upper portion 8a of the radiator 8, the height of the main body case 1 can be reduced. Therefore, the dehumidifying device 100 with a reduced height of the main body case 1 can be easily provided directly below the hung clothes, and thus the convenience is increased.

[0182] 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. Then, in Embodiment 1, the air volume of the second air passage 72 in the state where the damper 40 is closed is smaller than the air volume of the second air passage 72 in the state where the 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 less likely 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, condensation is likely to occur, and the dehumidifying ability is improved.

[0183] For example, in a side view, the second blade 42 is provided at a circumferential interval of about 120° from the first blade 41. That is, the damper 40 in Embodiment 1 has a cross section that is L-shaped 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 damper 40. In addition, the shape of the damper 40 is such that when in the open state, the air easily flows to the second air passage 72 and the third bypass air passage 73, and is not a shape that closes (blocks) the second air passage 72. The shape of the damper 40 can be set through experiments or simulations to obtain these characteristics.

[0184] The air damper 40 is configured to be rotatable about the rotation axis La. By rotating and driving the shaft portion 43 about the rotation axis La by a rotation actuator (not shown), the first blade 41 and the second blade 42 are moved circumferentially. As ​ 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 ​ 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.

[0185] It is possible to consider arranging the position of the air damper 40 at a position higher than the heat exchanger 11 to prevent the second blade 42 from interfering with 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 high. Therefore, in the heat exchanger 11 of the first embodiment, as shown in FIG. 8, in the region where the rotation region of the air damper 40 interferes with the heat exchanger 11, there is an inclined portion 11c that can avoid interference with the air damper 40. In this case, the height of the main body case 1 can be suppressed. Even when there is the inclined portion 11c, a part of the radiator 8 can be blocked 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.

[0186] The shape of the inclined portion 11c can be set through experiments or simulations. The inclined portion 11c of the air damper 40 in this first example has a rearward-low inclination in which the height gradually decreases toward the rear side.

[0187] 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 interposed therebetween, the wind in the first part 61 is deflected toward the center of the heat absorber 10. Due to the deflection of the wind, it is difficult for dew to form in the peripheral portions 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 surfaces 21 of the main body case 1. In this case, the unevenness (deflection to one side) of the wind flowing into the heat absorber 10 is improved, and by making the wind flow through the entire heat absorber 10, the dew formation region can be increased and the dehumidifying ability can be improved.

[0188] In the first embodiment, as ​As shown, in order to smoothly guide the inhaled air 60 from the side surface 21 to the heat absorber 10, a heat absorber gap 15 is provided 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 of the heat absorber 10 facing the front surface portion 22, and larger than the area of a specific portion 88 facing the rear surface portion 23 of the main body case 1. In this case, since the air volume of the first air passage 71 decreases and the air volume of the third bypass air passage 73 increases, the dehumidifying ability of the dehumidifying device 100 is improved, and power consumption can be suppressed.

[0189] The above is the description of the air damper 40.

[0190] (Heat absorber gap)

[0191] Next, refer to ​ to describe the heat absorber gap 15. ​ is a front view schematically showing the outline of the suction port 68 of the blower 6 and the outline of the heat absorber 10. From the viewpoint of generating dew condensation on the entire heat absorber 10, it is preferable that the air flowing toward 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, but depending on the shape of the heat absorber gap 15, there are cases where the diffusion effect cannot be obtained sufficiently. Therefore, the suction port 68 of the blower 6 in the first embodiment is smaller than the heat absorber 10 when viewed from the front. In addition, the center 68c of the suction port 68 is arranged at the same position as the left and right center 10c of the heat absorber 10. In this case, 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 unevenness of the air 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.

[0192] The heat absorber side cylinder portion 16 will be described. ​ 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 when observed from the right rear obliquely. ​ is a perspective view schematically showing the heat absorber 10 and the heat absorber side cylinder portion 16, and is a view when observed from the right front obliquely. In ​ the front surface portion 22 is shown by a dotted line.

[0193] In the first 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 connected to the upper ends of the two side surface portions 16b. As ​As shown, the absorber side cylinder portion 16 extends a distance 16g from the outer periphery of the absorber 10 toward the front surface portion 22. In addition, an absorber gap 15 is formed between the extending end 16a of the absorber side cylinder portion 16 and the front surface portion 22. In this case, since a space 16h surrounded by the absorber side cylinder portion 16 is formed between the absorber 10 and the front surface portion 22, air can flow smoothly. Thus, the air flows into the center of the absorber 10 within this space, and the air spreads throughout the space. Therefore, the dehumidifying device 100 generates dew condensation over the entire absorber 10, and the dehumidifying capacity is improved.

[0194] In the absorber side cylinder portion 16, the distance 16g extending from the outer periphery of the absorber 10 can be, for example, 5 mm or more and 50 mm or less. The distance 16g in the first embodiment is set to 25 mm. In addition, the width (amplitude) of the absorber gap 15 in the front-rear direction can be 5 mm or more and 20 mm or less. The width of the absorber gap 15 in the front-rear direction in the first embodiment is set to 10 mm.

[0195] In the first embodiment, the absorber side cylinder portion 16 (for example, the upper surface portion 16c) contacts the front surface portion 22. The absorber gap 15 includes openings 16e formed in the left and right side surface portions 16b of the absorber side cylinder portion 16. In addition, in the first embodiment, since the air in the second air passage 72 and the air in the first air passage 71 can be separated respectively, noise caused by air interference can be suppressed. In addition, by reducing the air turbulence, the air volume in the second air passage is increased, and the dehumidifying capacity 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.

[0196] In the first embodiment, the opening 16e is disposed at a position closer to the front side than the front-rear center of the absorber side cylinder portion 16. In this case, since the opening 16e is spaced apart from the absorber 10 in front of the absorber 10, the air in the first part 61 flowing in from the opening 16e is likely to spread. Thus, dew condensation occurs over the entire absorber 10, and therefore, the dehumidifying capacity is improved.

[0197] In the first embodiment, as ​ shown, a part of the refrigerant pipe 83 extending from the absorber 10 to the compressor 7 and the U-shaped pipe 83b are disposed within the absorber side cylinder portion 16. In this case, since a part of the refrigerant pipe 83 also performs heat exchange to cause dew condensation in the sucked air, the overall dehumidifying capacity is improved.

[0198] In this way, heat-absorbing components such as the absorber 10, the refrigerant pipe 83, and the U-shaped pipe 83b are surrounded by the absorber side cylinder portion 16. Therefore, the air between the main body case 1 and the 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.

[0199] In Embodiment 1, the heat absorber gaps 15 are provided on the left and right side surfaces 16b of the side cylinder portion 16 of the heat absorber. When viewed from the front, the left and right heat absorber gaps 15 are arranged symmetrically left and right. In this case, the wind from the left and right side surfaces 16b is evenly sucked into the side cylinder portion 16 of the heat absorber and diffused. Therefore, since the dehumidifying device 100 causes condensation to occur throughout the heat absorber 10, the dehumidifying ability is improved.

[0200] In Embodiment 1, the left and right heat absorber gaps 15 are arranged at equal distances from the left and right centers of the side cylinder portion 16 of the heat absorber. In this case, the wind from the left and right side surfaces 16b is sucked in more evenly, which is beneficial to improving the dehumidifying ability.

[0201] Referring to FIG. 15, the guiding surface 16j of the side cylinder portion 16 of the heat absorber will be described. FIG. 15 is a schematic top view showing the side cylinder portion 16 of the heat absorber. ​ The side cylinder portion 16 of the heat absorber having the guiding surface 16j is shown. ​ The side cylinder portion 16 of the heat absorber not having the guiding surface 16j is shown. The side cylinder portion 16 of the heat absorber in Embodiment 1 has a guiding surface 16j that guides a first portion 61, which is a part of the intake air 60 sucked in from the air intake 2, into the heat absorber gap 15. In this case, since the air is guided along the guiding surface 16j to the heat absorber gap 15, the intake resistance of the heat absorber gap 15 can be reduced. As long as the air from the air intake 2 can be smoothly guided to the heat absorber gap 15, the shape of the guiding surface 16j is not limited. The shape of the guiding surface 16j in Embodiment 1 is a conical surface obtained by removing the front corner portion of the side cylinder portion 16 of the heat absorber and having a gradually decreasing left and right width as it approaches the front surface portion 22.

[0202] The above is the description of the heat absorber gap 15.

[0203] The operation of the dehumidifying device 100 in Embodiment 1 will be described. When the blower 6 operates, the intake air 60 is sucked into the main body case 1 from the air intake 2 provided on the side surface 21. The intake air 60 is divided into a first portion 61, a second portion 62, a third portion 63, and a fourth portion 64. The first portion 61 flows into the radiator 8 through the first passage 17 of the heat absorber 10 and the heat exchanger 11 to cool the radiator 8. The second portion 62 flows into the radiator 8 through the second passage 18 of the heat exchanger 11 to cool the radiator 8.

[0204] The third part 63 flows into the radiator 8 through a third bypass air passage 73 that bypasses the heat absorber 10 and the heat exchanger 11, and cools the radiator 8. The fourth part 64 flows into the radiator 8 through the bypass air passages (74, 75) that bypass the heat absorber 10 and the heat exchanger 11 and through the radiator gap 19, and cools 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 air outlet 4 to the outside of the main body case 1 via the blower 6.

[0205] The first part 61 and the second part 62 of the intake air 60 are cooled by the heat absorber 10 or the heat exchanger 11 of the refrigeration cycle, causing 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.

[0206] Describe the features of the dehumidifying device 100 in Embodiment 1. The dehumidifying device 100 includes a main body case 1 having an air intake 2 and an air outlet 4. A heat absorber 10, a heat exchanger 11, a radiator 8, and a blower 6 are arranged in the main body case 1. In the dehumidifying device 100, due to the action of the blower 6, the intake air 60 sucked into the main body case 1 from the air intake 2 is divided into a first part 61, a second part 62, and a third part 63. The dehumidifying device 100 has: a first dehumidification path 51 that blows the first part 61 of the intake air 60 out of the air outlet 4 to the outside of the main body case 1 via the heat absorber 10, the first passage 17 of the heat exchanger 11, and the radiator 8; a second dehumidification path 52 that blows the second part 62 of the intake air 60 out of the air outlet 4 to the outside of the main body case 1 via the second passage 18 of the heat exchanger 11 and the radiator 8; and a bypass air passage 73 that blows the third part 63 of the intake air 60 out of the air outlet 4 to the outside of the main body case 1 via a specific part 88 of the radiator 8 without passing through the heat absorber 10 and the heat exchanger 11. The dehumidifying device 100 is provided with a damper 40 for opening and closing the bypass air passage 73 in the bypass air passage 73, and has a temperature sensor 48 for detecting the temperature of the intake air 60.

[0207] The dehumidifying device 100 in Embodiment 1 is provided with a damper 40 for opening and closing the bypass air passage 73. In the case of low temperature, the damper 40 is closed to avoid overcooling of the radiator 8. In the case of high temperature, the damper 40 is opened to improve the cooling capacity of the radiator 8, thereby being able to improve the dehumidifying capacity of the dehumidifying device 100. As a result, if having the same dehumidifying capacity, the power consumption of the dehumidifying device 100 can be reduced.

[0208] An aspect of the present invention is outlined as follows.

[0209] (Item 1)

[0210] A dehumidifying device (100),

[0211] It includes: a main body case (1) having an air suction port (2) and an air blow-out port (4),

[0212] a heat absorber (10), a heat exchanger (11), a radiator (8) and a blower (6) are arranged in the main body case (1),

[0213] the sucked air (60) sucked into the main body case (1) from the air suction port (2) under the action of the blower (6) is divided into a first part (61), a second part (62) and a third part (63),

[0214] the dehumidifying device (100) has:

[0215] a first dehumidifying path (51) for blowing out the first part (61) of the sucked air (60) from the air blow-out port (4) to the outside of the main body case (1) via the heat absorber (10), the first passage (17) of the heat exchanger (11) and the radiator (8);

[0216] a second dehumidifying path (52) for blowing out the second part (62) of the sucked air (60) from the air blow-out port (4) to the outside of the main body case (1) via the second passage (18) of the heat exchanger (11) and the radiator (8); and

[0217] a bypass air passage (73) for blowing out the third part (63) of the sucked air (60) from the air blow-out port (4) to the outside of the main body case (1) via a specific part (88) of the radiator (8) without passing through the heat absorber (10) and the heat exchanger (11),

[0218] a damper (40) for opening and closing the bypass air passage (73) is provided in the bypass air passage (73),

[0219] and a temperature sensor (48) for detecting the temperature of the sucked air (60) is provided.

[0220] (Item 2)

[0221] For the dehumidifying device (100) as described in Item 1,

[0222] when the detected temperature of the temperature sensor (48) is less than the threshold value, the damper (40) is closed to increase the air volume of the first dehumidifying path (51),

[0223] when the detected temperature of the temperature sensor (48) is above the threshold value, the damper (40) is opened to increase the air volume of the bypass air passage (73).

[0224] (Item 3)

[0225] For the dehumidifying device (100) as described in Item 2,

[0226] The specific part (88) is the upper part (8a) of the radiator (8).

[0227] (Item 4)

[0228] The dehumidifying device (100) as described in Item 2

[0229] The specific part (88) is a part near the end of either the left or right side of the radiator (8).

[0230] (Item 5)

[0231] The dehumidifying device (100) as described in Item 2

[0232] In a state where the air damper (40) is closed, the air volume of the second dehumidification path (52) is reduced compared to a state where the air damper (40) is open.

[0233] (Item 6)

[0234] The dehumidifying device (100) as described in Item 2

[0235] The air damper (40) is configured to be rotatable about a rotation axis and has an L-shaped cross-section when viewed from a direction along the rotation axis.

[0236] The heat exchanger (11) has an inclined portion (11c) capable of avoiding interference with the air damper (40) in a region where the heat exchanger (11) interferes with the rotation region of the air damper (40).

[0237] (Item 7)

[0238] The dehumidifying device (100) as described in Item 2

[0239] The air suction port (2) is arranged on the side surface portion (21) of the main body case (1).

[0240] The heat absorber (10), the heat exchanger (11), the radiator (8) and the blower (6) are arranged in the front-rear direction.

[0241] There is a heat absorber gap (15) between the front surface portion (22) of the main body case (1) and the heat absorber (10).

[0242] The opening area of the heat absorber gap (15) is smaller than the relative area of the heat absorber (10) facing the front surface portion (22) and larger than the area of the specific part (88) facing the rear surface portion (23) of the main body case (1).

[0243] As described above, the present invention has been described based on Embodiment 1. Those skilled in the art should understand that this Embodiment 1 is exemplary, and various modifications can be made to the combination of each of its constituent elements and each processing procedure, and these modifications are also within the scope of the present invention.

[0244] In the description of Embodiment 1, a structure including bypass air passages (74, 75) was exemplified, but it is not necessarily required to include the bypass air passages (74, 75).

[0245] In the description of Embodiment 1, a structure in which the air suction port 2 is provided on the side surface portion 21 of the main body case 1 was exemplified, 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.

[0246] The dehumidifying device described in Patent Document 1 has a structure in which air is blown to the upper part of the radiator in order to cool the radiator using the third air passage. However, in order to further improve the dehumidifying ability and reduce power consumption, if the number of radiator stages is increased, the height of the device main body becomes high, which may lead to poor usability.

[0247] The present invention provides a dehumidifying device that changes the shape of the dehumidifying inlet side of the heat exchanger to an upward inclined surface shape that slopes downward from the heat absorber side to the radiator side, increases the air volume passing through the radiator, thereby improving the dehumidifying efficiency while suppressing the height of the device main body, and also improving the dehumidifying ability when the temperature is low.

[0248] A dehumidifying device according to one embodiment of the present invention includes: a main body case having an air suction port and an air blow-out port, in which an endothermic device, a heat exchanger, a radiator, and a blower are arranged. The heat exchanger includes: a plurality of first passages extending horizontally as a first horizontal direction; and a plurality of second passages extending longitudinally independently of the first passages, and heat exchange is performed between the air flowing through the first passages and the air flowing through the second passages. The intake air sucked into the main body case from the suction port under the action of the blower is divided into a first part, a second part, and a third part. The dehumidifying device has: a first dehumidifying path that blows the first part of the intake air out of the main body case from the air blow-out port via the endothermic device, the first passages of the heat exchanger, and the radiator; a second dehumidifying path that blows the second part of the intake air out of the main body case from the air blow-out port via the second passages of the heat exchanger and the radiator; and a third dehumidifying path that blows the third part of the intake air out of the main body case from the air blow-out port via the radiator without passing through the endothermic device and the heat exchanger. The endothermic device, the heat exchanger, and the radiator are arranged in sequence in the first horizontal direction. In the heat exchanger, an upper surface that is an outer surface on the upper side of the heat exchanger is an inlet of the second passages, and has an upper inclined surface that slopes downward from the endothermic device side to the radiator side. The third dehumidifying path blows out of the main body case from the air blow-out port via the radiator above the lower end of the upper inclined surface of the heat exchanger, thereby achieving the intended purpose.

[0249] In addition, any combination of the above components, and components obtained by transforming the expressions of the present invention among methods, devices, systems, recording media, computer programs, etc., are also embodiments of the present invention.

[0250] According to the present invention, a dehumidifying device can be provided that can improve the dehumidification efficiency while suppressing the height of the device main body, and can also improve the dehumidification ability when the temperature is low.

[0251] (Embodiment 2)

[0252] Refer to ​ , and explain the schematic structure of the dehumidifying device 1100 according to Embodiment 2 of the present invention. ​ is a perspective view showing the dehumidifying device 1100 according to Embodiment 2. ​ is a cross-sectional view showing a cross-section of the dehumidifying device 1100 along the B-B line when viewed from the side along ​ .

[0253] As ​As shown, the dehumidifying device 1100 of Embodiment 2 has a box-shaped main body case 1001 as its outer contour, and the inside and outside of the main body case 1001 are distinguished by the main body case 1001. An air suction port 1002 and an air blow-out port 1004 are provided in the main body case 1001.

[0254] As ​ shown, the dehumidifying device 1100 includes a heat absorber 1010, a heat exchanger 1011, a radiator 1008, and a blower 1006. The heat absorber 1010, the heat exchanger 1011, the radiator 1008, and the blower 1006 are arranged in this order in the front-rear direction within the main body case 1001. The expressions of the directions of the devices in this specification are defined based on the directions when the dehumidifying device is set in a normal operating state. In the dehumidifying device 1100, the side where the heat absorber 1010 is arranged relative to the radiator 1008 is referred to as the "front", the opposite side is referred to as the "rear", and the horizontal direction orthogonal to the front-rear direction is referred to as the "left-right direction".

[0255] Sometimes the state when observed from the front is referred to as "front view", the state when observed from the rear is referred to as "rear view", the state when observed from the left or right is referred to as "side view", and the state when observed from above is referred to as "top view". Additionally, sometimes the air flow generated under the action of the blower 1006 is referred to as "wind", and sometimes the upstream and downstream of this air flow are referred to as "upwind" and "downwind". These expressions are not restricted by the attitude of the dehumidifying device 1100 during use, and the dehumidifying device 1100 can be used in any attitude.

[0256] In Embodiment 2, the front-rear width of the main body case 1001 is smaller than the left-right width, and the up-down width is larger than the left-right width. Regarding the main body case 1001, the part constituting the outer surface on the front side is referred to as the "front surface part", the part constituting the outer surface opposite to the front surface part is referred to as the "rear surface part", the parts constituting the outer surfaces on the left and right sides are referred to as the "side surface parts", and the part constituting the outer surface on the upper side is referred to as the "upper surface part".

[0257] An operation part 1025 is provided on the front side of the upper surface part of the main body case 1001. The operation part 1025 receives inputs from the user, for example, or displays information about the dehumidifying device such as the working mode or the current humidity to the user. In the front-rear direction, a heat absorber gap 1015 is provided between the heat absorber 1010 and the front surface part 1022. Additionally, a radiator gap 1019 is provided between the radiator 1008 and the heat exchanger 1011.

[0258] In Embodiment 2, the air inlet 1002 is disposed on the side surface portion 1021 of the main body case 1001. The air inlet 1002 is a rectangular opening that sucks air from a direction perpendicular to the side surface portion 1021 of the main body case 1001, and is provided with a grille. In Embodiment 2, the air outlet 1004 is disposed at the upper rear side of the main body case 1001. Above the air outlet 1004, there is provided a louver 1031 for changing the direction of the air blown out from the air outlet 1004.

[0259] The blower 1006 includes an electric motor 1032 and a fan 1033 that sucks and discharges air. The fan 1033 is connected to the rotating shaft of the electric motor 1032. The blower 1006 has an air suction port 1068 that is an opening provided on the surface opposite to the radiator 1008. The blower 1006 sucks the air that has passed through the dehumidifying unit 1005 through the air suction port 1068, and blows the sucked air to the outside of the blower 1006. Thus, the blower 1006 causes the air outside the main body case 1001 sucked from the air inlet 1002 to pass through the dehumidifying unit 1005 and then blows it out of the main body case 1001 from the air outlet 1004. The path of this air is the air passage 1034. The rotating shaft of the electric motor 1032 extends in the front-rear direction of the main body case 1001.

[0260] When the air inlet 1002 is disposed on the opposite side of the air suction port 1068 of the blower 1006 with the heat absorber 1010 therebetween, the wind of the first portion 1061, which is a part of the sucked air 1060, is deflected toward the center of the heat absorber 1010. Due to the unevenness of the wind deflection, it is difficult for dew to form on the peripheral portions of the heat absorber 1010 and the radiator 1008, and the dehumidifying ability is reduced. Therefore, in Embodiment 2, the air inlets 1002 are respectively provided on the left and right two side surface portions 1021 of the main body case 1001. In this case, since the unevenness of the wind flowing into the heat absorber 1010 is improved, the wind can flow to the entire heat absorber 1010. Therefore, the dew formation area in the dehumidifying device 1100 can be increased, and the dehumidifying ability can be improved.

[0261] In addition, as ​ shown, an air passage 1034, a blower 1006, and a dehumidifying unit 1005 are disposed in the main body case 1001 of the dehumidifying device 1100. The air passage 1034 communicates the air inlet 1002 and the air outlet 1004. Under the action of the blower 1006, the sucked air 1060 is sucked into the main body case 1001 from the air inlet 1002 and blown out from the air outlet 1004 through the air passage 1034.

[0262] ​It is a diagram schematically showing the air passage 1034 of the dehumidifying device 1100. The intake air 1060 is split in the main body case 1001 into a first part 1061, a second part 1062, a third part 1063, and a fourth part 1064, which are part of the intake air 1060. ​ It is a diagram showing the overlapping of the air flows of the first part 1061, the second part 1062, and the third part 1063 in a sectional view. Additionally, in ​ it shows the air flow in the state where the air damper 1040 described later is open.

[0263] The air passage 1034 in Embodiment 2 is composed of a plurality of dehumidification paths. The air passage 1034 is composed of a first dehumidification path 1051, a second dehumidification path 1052, a third dehumidification path 1053, and a fourth dehumidification path 1054. The air flow path of the first dehumidification path 1051 is called the first air path 1071, the air flow path of the second dehumidification path 1052 is called the second air path 1072, the air flow path of the third dehumidification path 1053 is called the third bypass air path 1073, and the air flow paths of the fourth dehumidification path 1054 are called the first bypass air path 1074 and the second bypass air path 1075. In other words, it can also be said that the air passage 1034 is composed of the first air path 1071, the second air path 1072, the third bypass air path 1073, the first bypass air path 1074, and the second bypass air path 1075. The first air path 1071, the second air path 1072, the third bypass air path 1073, the first bypass air path 1074, and the second bypass air path 1075 will be described later.

[0264] The dehumidifying unit 1005 is composed of a refrigeration cycle in which a compressor 1007, a radiator 1008, an expander 1009, and an absorber 1010 are connected in series to form a loop. In the refrigeration cycle, for example, an alternative refrigerant (HFC134a) is used as the refrigerant. The refrigerant discharged from the compressor 1007 flows downward through the refrigerant pipe 1080 inside the radiator 1008. Therefore, the temperature of the upper part of the radiator 1008 is higher. The refrigerant discharged from the radiator 1008 is supplied to the absorber 1010 via the expander 1009. The refrigerant supplied to the absorber 1010 flows upward inside the absorber 1010 and flows into the compressor 1007 through the refrigerant pipe 1083. Among them, the refrigeration cycle is well-known, so detailed description is omitted.

[0265] Inside the main body case 1001, a heat absorber 1010 is provided on the air suction port 1002 side which is the upstream side of the air flow in the air passage 1034, and a radiator 1008 is provided on the air blowout port 1004 side which is the downstream side of the air flow in the air passage 1034. The heat exchanger 1011 is a sensible heat type and is disposed in the space between the heat absorber 1010 and the radiator 1008. In other words, the heat absorber 1010, the heat exchanger 1011, and the radiator 1008 are arranged in this order from the upstream side to the downstream side of the air flow in the air passage 1034.

[0266] As ​ shown, the heat exchanger 1011 has: a first passage 1017 in the lateral direction (first lateral direction) through which a first portion 1061 of the intake air 1060 passes; and a second passage 1018 in the longitudinal direction through which a second portion 1062 of the intake air 1060 passes. The first passage 1017 and the second passage 1018 are independent air passage spaces. The structure or shape of the heat exchanger 1011 is not limited. Also, as ​ shown, as an example, the heat exchanger 1011 stacks a plurality of resin plates (not shown). The first passage 1017 and the second passage 1018 are formed between the stacked plurality of plates. The heat exchanger 1011 is configured to be able to perform heat exchange between a first portion 1061 passing through the first passage 1017 (the passage of air X) and a second portion 1062 passing through the second passage 1018 (the passage of air Y). As an example, the shape of the heat exchanger 1011 is a rectangular parallelepiped, and at least a part of the upper surface which is the outer surface on the upper side of the heat exchanger 1011 has an upper inclined surface 1011a, and at least a part of the lower surface which is the outer surface on the lower side of the heat exchanger 1011 has a lower inclined surface 1011b. The upper inclined surface 1011a is the inlet of the second passage 1018, and its shape is inclined downward as it goes from the heat absorber 1010 side to the radiator 1008 side. The lower inclined surface 1011b is the outlet of the second passage 1018, and its shape is inclined upward as it goes from the heat absorber 1010 side to the radiator 1008 side. When the heat exchanger 1011 is viewed from the side of the main body case 1001, it is a substantially trapezoid (including trapezoid) in which the side on the radiator 1008 side and the side on the heat absorber 1010 side are parallel to each other, and the length of the side on the heat absorber 1010 side is larger than the length of the side on the radiator 1008 side.

[0267] A first portion 1061, which is part of the intake air 1060, is blown out of the air outlet 1004 to the outside of the main body case 1001 via the heat absorber 1010, the first passage 1017 of the heat exchanger 1011, the radiator 1008, and the blower 1006. The flow path of the first portion 1061 is the above-described first air passage 1071. A second portion 1062, which is part of the intake air 1060, is blown out of the air outlet 1004 to the outside of the main body case 1001 via the second passage 1018 of the heat exchanger 1011, the radiator 1008, and the blower 1006. The path of the second portion 1062 is the above-described second air passage 1072.

[0268] The first portion 1061 is first cooled by the heat absorber 1010. At this time, the first portion 1061 condenses to generate condensed water. The condensed water drips downward to the heat absorber 1010 and the heat exchanger 1011, and is collected in the funnel-shaped water collecting portion 1012a disposed below the heat absorber 1010 and the heat exchanger 1011. The condensed water collected in the water collecting portion 1012a flows into the water collecting tank 1012b disposed below the water collecting portion 1012a. The water collecting tank 1012b can be easily attached to and detached from the main body case 1001.

[0269] The first portion 1061 that has been cooled by heat exchange and flows through the first passage 1017 reduces the temperature of the second portion 1062 flowing in the second passage 1018. As a result, the second portion 1062 that has not passed through the heat absorber 1010 also condenses to generate condensed water. The condensed water drips downward from the second passage 1018 to the heat exchanger 1011, and is collected by the funnel-shaped water collecting portion 1012a and flows into the water collecting tank 1012b.

[0270] In the heat exchanger 1011 in the second embodiment, the ventilation resistance of the second passage 1018 is set to be larger than the ventilation resistance of the first passage 1017. As a result, the air volume of the second portion 1062 flowing through the second passage 1018 is smaller than the air volume of the first portion 1061 flowing through the first passage.

[0271] The first portion 1061 that has dried after condensation is blown out of the air outlet 1004 to the outside of the main body case 1001. In addition, the second portion 1062 that has dried after condensation is blown out of the heat exchanger 1011 to the outside of the main body case 1001 via the radiator 1008 and the blower 1006 from the air outlet 1004. Thus, the dehumidifying device 1100 reduces the humidity of the surrounding space.

[0272] (Third bypass air passage)

[0273] Next, the third bypass air passage 1073 will be described. As ​As shown, the third bypass air passage 1073 is an air passage that blows a third part 1063, which is a part of the intake air 1060, to the outside of the main body case 1001 from the air outlet 1004 via a specific part 1088 of the radiator 1008 without passing through the heat absorber 1010 and the heat exchanger 1011. In other words, the third bypass air passage 1073 is an air passage through which a third part 1063, which is a part of the intake air 1060, flows bypassing the heat absorber 1010 and the heat exchanger 1011.

[0274] In the second embodiment, the third bypass air passage 1073 is provided at a position above the first bypass air passage 1074 and the second bypass air passage 1075. The third bypass air passage 1073 blows a third part 1063, which is a part of the intake air 1060, to the outside of the main body case 1001 from the air outlet 1004 via the upper part 1008a of the radiator 1008 without passing through the heat absorber 1010 and the heat exchanger 1011. In this case, since the upper part 1008a of the radiator 1008 is cooled by the third part 1063, the cooling capacity of the radiator 1008 is improved. Therefore, the dehumidifying capacity of the dehumidifying device 1100 is improved, and power consumption can be further reduced.

[0275] The upper part 1008a of the radiator 1008 refers to a part above the center of the radiator 1008 in the vertical direction. In the second embodiment, the radiator 1008 protrudes to a position above the lower end of the upper inclined surface 1011a corresponding to the upper surface (the upper outer surface) of the heat exchanger 1011, and this protruding part is called the upper part 1008a.

[0276] By having the third bypass air passage 1073, the third part 1063 cools the upper part 1008a after passing through the upper part 1008a of the radiator 1008. The heat absorber 1010 is cooled by the refrigeration cycle of the dehumidifying part 1005, and with the cooling effect of the third bypass air passage 1073 on the upper part 1008a, the dehumidifying capacity of the dehumidifying device 1100 can be further improved. The refrigerant that has become high temperature in the compressor 1007 first flows into the upper part 1008a side of the radiator 1008, so the temperature of the upper part 1008a is higher than other parts. Therefore, by cooling the upper part 1008a with the third part 1063, the radiator 1008 can be effectively cooled. In addition, the first part 1061 and the second part 1062 pass through a part below the upper part 1008a of the radiator 1008.

[0277] (The first bypass air passage and the second bypass air passage)

[0278] Next, refer to ​ 、 ​, the first bypass air passage 1074 and the second bypass air passage 1075 are described. Here, when the first bypass air passage 1074 and the second bypass air passage 1075 are collectively referred to, they are called the bypass air passage (1074, 1075). ​ is a perspective view of the radiator 1008 as seen from the right front. ​ is a view of the radiator 1008 as seen from the back. The bypass air passage (1074, 1075) is an air passage through which the fourth part 1064, which is a part of the intake air 1060, flows around the heat absorber 1010 and the heat exchanger 1011.

[0279] The radiator 1008 has a refrigerant pipe 1080, which is composed of pipes through which the refrigerant for the refrigeration cycle flows. The refrigerant pipe 1080 has a plurality of main refrigerant pipes 1081a extending left and right, and a first U-shaped pipe 1081b and a second U-shaped pipe 1081c connected between the plurality of main refrigerant pipes. The first U-shaped pipe 1081b is provided on one side portion of the radiator 1008. The second U-shaped pipe 1081c is provided on the other side portion of the radiator 1008. In the dehumidifying device 1100, air passages surrounding the first U-shaped pipe 1081b and the second U-shaped pipe 1081c are provided. The air passage surrounding the first U-shaped pipe 1081b is called the first bypass air passage 1074, and the air passage surrounding the second U-shaped pipe 1081c is called the second bypass air passage 1075. In the second embodiment, an example in which both the first bypass air passage 1074 and the second bypass air passage 1075 are provided is described, but only one of the first bypass air passage 1074 and the second bypass air passage 1075 may be provided.

[0280] Here, the bypass air passage (1074, 1075) is specifically described. Here, the first bypass air passage 1074 is mainly described, but the description of the first bypass air passage 1074 can also be applied to the second bypass air passage 1075. In this case, the first U-shaped pipe 1081b is replaced with the second U-shaped pipe 1081c. As ​ , ​ shown, the radiator 1008 has a resin outer frame 1084 that supports the refrigerant pipe 1080. The bypass air passage (1074, 1075) is provided on the side portion of the outer frame 1084. A radiator side cylinder portion 1085 is provided in front of the outer frame 1084. The radiator side cylinder portion 1085 extends forward from the radiator 1008 toward the heat exchanger 1011. The radiator side cylinder portion 1085 is formed so as to surround a part or all of the heat exchanger 1011. The outer frame 1084, the bypass air passage (1074, 1075), and the radiator side cylinder portion 1085 are integrally formed by resin molding.

[0281] The radiator side cylinder part 1085 is integrally formed by four plate-shaped protruding parts that protrude forward from the upper, lower, left, and right four edges of the outer frame 1084. The radiator side cylinder part 1085 is composed of an upper protruding part 1085a on the upper side, a right protruding part 1085b on the right side, a lower protruding part 1085c on the lower side, and a left protruding part 1085d on the left side. In particular, as ​ shown, a plurality of rectangular openings 1086 arranged left and right are formed in the upper protruding part 1085a. The plurality of rectangular openings 1086 open upward. The second part 1062 flows from top to bottom through the plurality of rectangular openings 1086.

[0282] The first side ventilation path 1074 is composed of a hollow square tube-shaped part that extends vertically on the side part of the outer frame 1084, and is arranged to surround the first U-shaped tube 1081b. The first side ventilation path 1074 has a first opening 1074a into which the fourth part 1064 flows. The first opening 1074a in the second embodiment is provided in the upper part of the first side ventilation path 1074. The first opening 1074a is provided at a position above the upper and lower center of the first side ventilation path 1074. In addition, when the vertical length of the first side ventilation path 1074 is set to 100%, the first opening 1074a is preferably provided within a range of 30% from the upper end. The first opening 1074a in the second embodiment is a rectangular opening that opens upward at the upper end of the first side ventilation path 1074.

[0283] The first side ventilation path 1074 communicates with the radiator gap 1019 (refer to ​ ) which is the gap between the heat exchanger 1011 and the radiator 1008. As ​ shown, a part of the intake air 1060, the fourth part 1064, is sucked from the first opening 1074a, flows downward in the first side ventilation path 1074, and flows into the radiator gap 1019. The fourth part 1064 flowing into the radiator gap 1019 diffuses vertically and horizontally in the radiator gap 1019. The diffused fourth part 1064 flows into the radiator 1008 from the front surface 1008c of the radiator 1008, and cools the radiator 1008. The fourth part 1064 after cooling the radiator 1008 is blown out of the main body case 1001 from the air outlet 1004.

[0284] A part of the intake air 1060, the fourth part 1064, flows into the radiator 1008 after passing through the radiator gap 1019 from the first side ventilation path 1074. Therefore, the air flows toward the entire radiator 1008, and the uneven cooling (bias to one side) of the radiator 1008 is reduced. As a result, the cooling capacity of the radiator 1008 is improved, and thus the dehumidifying capacity of the dehumidifying device 1100 is improved. As a result, if the dehumidifying capacity is the same, the power consumption of the dehumidifying device 1100 can be reduced.

[0285] The first bypass air passage 1074 may also communicate with the radiator gap 1019 at a position above the upper and lower center of the first bypass air passage 1074. However, in the second embodiment, it communicates with the radiator gap 1019 at a position below the upper and lower center.

[0286] In the second embodiment, it further includes a second bypass air passage 1075 surrounding the second U-shaped tube 1081c. The second bypass air passage 1075 has a second opening 1075a similar to the first opening 1074a. Therefore, the fourth part 1064 passes through the radiator gap 1019 from the first bypass air passage 1074 and the second bypass air passage 1075, and air flows into the radiator 1008 from the left and right sides. As a result, by reducing the left-right unevenness of the air flowing into the radiator 1008, the left-right unevenness of the cooling of the radiator 1008 is further reduced. The dehumidifying device 1100 can improve the cooling capacity of the radiator 1008 by reducing the cooling unevenness. Therefore, the dehumidifying capacity is improved, and the power consumption can be further reduced.

[0287] By having the bypass air passages (1074, 1075), the fourth part 1064 cools the radiator 1008. The dehumidifying device 1100 cools the heat absorber 1010 through the refrigeration cycle of the dehumidifying part 1005, and has the cooling effect of the radiator 1008 based on the bypass air passages (1074, 1075), and can further improve the dehumidifying capacity.

[0288] The first opening 1074a in the second embodiment is provided at the upper part of the first bypass air passage 1074, and the second opening 1075a is provided at the upper part of the second bypass air passage 1075. In this way, by providing the first opening 1074a and the second opening 1075a at the upper part, the wind blows to the upper side of the radiator 1008. Since the upper side of the radiator 1008 is relatively higher in temperature than the lower side, by blowing the wind to the upper side of the radiator 1008, the ability to cool the radiator 1008 can be improved. Therefore, the dehumidifying capacity of the dehumidifying device 1100 can be improved, and the power consumption can be reduced.

[0289] As described above, the air suction port 1002 is provided on the side surface portion 1021 of the main body case 1001. In other words, it is arranged on two side surfaces of the main body case 1001 (the left and right side surface portions 1021 of the main body case 1001) that are opposite in the second lateral direction (the left and right direction of the main body case 1001), where the second lateral direction is the lateral direction orthogonal to the first lateral direction (the front and back direction of the main body case 1001). In this case, the air flows easily, the cooling capacity of the radiator 1008 is improved, so the dehumidifying capacity of the dehumidifying device 1100 can be improved, and the power consumption can be reduced.

[0290] (Damper)

[0291] Next, referring to​ Explanation of the damper 1040. ​ It is a perspective view of the damper 1040 showing the first example. ​ And ​ It is a side view schematically showing the function of the damper 1040 of the first example. As ​ shown, the damper 1040 of the first example has: a first blade 1041 that opens and closes the third bypass air passage 1073, a second blade 1042 that opens and closes the second air passage 1072, and a shaft portion 1043 that supports the root end sides of the first blade 1041 and the second blade 1042. The first blade 1041 and the second blade 1042 are rectangular plate-like portions extending radially outward from the shaft portion 1043, and they can be integrally formed by resin molding.

[0292] The third bypass air passage 1073 supplies a third portion 1063, which is part of the intake air 1060, to the radiator 1008 without passing through the heat absorber 1010 and the heat exchanger 1011. As a result, a specific portion 1088 of the radiator 1008 is cooled, so the dehumidifying ability of the dehumidifying device 1100 can be improved. However, when the radiator 1008 is cooled, the heat absorber 1010 is also cooled by the refrigeration cycle. Therefore, in the case of low temperature, the radiator 1008 is overcooled, the heat absorber 1010 freezes, and the dehumidifying ability may instead decrease.

[0293] Thus, in the second embodiment, a damper 1040 for opening and closing the third bypass air passage 1073 is provided in the third bypass air passage 1073. In addition, as ​ shown, the dehumidifying device 1100 has a temperature sensor 1048 that detects the temperature of the intake air 1060. In this case, the damper 1040 is opened and closed according to the temperature detected by the temperature sensor 1048. By opening and closing the damper 1040, the air volume balance between the first air passage 1071 and the third bypass air passage 1073 can be adjusted, so the dehumidifying ability can be improved.

[0294] ​ It is a block diagram of the damper control system 1044 that controls the opening and closing of the damper 1040. The dehumidifying device 1100 has a control unit 1046 that controls the opening and closing of the damper 1040 according to the detected temperature of the temperature sensor 1048. The control unit 1046 has: an arithmetic unit 1046a that calculates the difference between the detected temperature Tx of the temperature sensor 1048 and the reference temperature Ts, and a drive unit 1046b that opens and closes the drive damper 1040 based on the difference between the detected temperature Tx and the reference temperature Ts.

[0295] The control unit 1046, when the detected temperature Tx of the temperature sensor 1048 is less than the reference temperature Ts (at low temperature), as ​As shown, the damper 1040 is closed to reduce the air volume of the third bypass air passage 1073 and increase the air volume of the first air passage 1071. In addition, when the detected temperature Tx of the temperature sensor 1048 is above the reference temperature Ts (at high temperatures), the control unit 1046, as ​ shown, opens the damper 1040 to increase the air volume of the third bypass air passage 1073. In addition, in the open state, the air volume of the first air passage 1071 is reduced compared to the closed state.

[0296] In this structure, since the air volume of the first air passage 1071 passing through the heat absorber 1010 increases at low temperatures, the temperature of the heat absorber 1010 rises, and it is difficult for the heat absorber 1010 to freeze. Therefore, it is possible to suppress a decrease in the dehumidifying ability caused by the freezing of the heat absorber 1010. In addition, since the air volume of the third bypass air passage 1073 passing through the radiator 1008 increases at high temperatures, the temperature of the radiator 1008 decreases, and power consumption can be suppressed. In addition, as the temperature of the radiator 1008 decreases, the temperature of the heat absorber 1010 also decreases, and dew condensation is likely to occur, so the dehumidifying ability can be improved.

[0297] The reference temperature Ts can be preset through experiments or simulations to obtain the required characteristics. In addition, the reference temperature Ts can also be set by the user from the operation unit 1025. The reference temperature Ts represents a threshold value by way of example.

[0298] From the viewpoint of effectively cooling the radiator 1008, the specific part 1088 is preferably the relatively high-temperature part of the radiator 1008. Thus, the specific part 1088 in the second embodiment is the upper part 1008a of the radiator 1008. In this case, in the refrigerant path of the refrigeration cycle, the temperature of the upper part 1008a of the radiator 1008 is higher than that of the lower part of the radiator 1008, and the temperature difference from the indoor air is large. Therefore, by blowing the indoor air onto the upper part 1008a of the radiator 1008, the radiator 1008 can be effectively cooled. As a result, the dehumidifying ability of the dehumidifying device 1100 is improved, and the power consumption of the dehumidifying device 1100 can be reduced. As described above, the upper part 1008a of the radiator 1008 is a part above the upper and lower centers of the radiator 1008 and is a part protruding upward from the upper end of the heat absorber 1010 or the upper end of the heat exchanger 1011.

[0299] In order to avoid freezing of the heat absorber 1010, it is preferable to increase the air volume of the first air passage 1071 at low temperatures. Thus, in Embodiment 2, the air volume of the second air passage 1072 in the state where the air damper 1040 is closed is smaller than the air volume of the second air passage 1072 in the state where the air damper 1040 is open. In this case, since the air volume of the first air passage 1071 increases in the closed state compared to the open state, the heat absorber 10,10 is less likely to freeze. In addition, since the air volume of the second air passage 1072 decreases, the temperature at the outlet of the heat exchanger 1011 decreases, condensation is likely to occur, and the dehumidifying ability is improved.

[0300] For example, when viewed from the side, the second blade 1042 is provided at a circumferential interval of about 120° with respect to the first blade 1041. That is, the air damper 1040 of Embodiment 2 has a cross section that is L-shaped when viewed from the direction along the rotation axis Lb. In this case, the second air passage 1072 and the third bypass air passage 1073 can be blocked by one air damper 1040. In addition, the shape of the air damper 1040 is such that air easily flows into the second air passage 1072 and the third bypass air passage 1073 in the open state, and does not block the second air passage 1072. The shape of the air damper 1040 can be set through experiments or simulations to obtain these characteristics.

[0301] The air damper 1040 is configured to be rotatable about the rotation axis Lb. By rotationally driving the shaft portion 1043 about the rotation axis Lb using a rotation actuator (not shown), the first blade 1041 and the second blade 1042 move in the circumferential direction. As ​ shown, when the first blade 1041 is at the 12 o'clock position, the first blade 1041 closes the third bypass air passage 1073, and the second blade 1042 closes a part of the second air passage 1072. As ​ shown, when the first blade 1041 is at the 2 o'clock position, the first blade 1041 opens the third bypass air passage 1073, and the second blade 1042 opens the second air passage 1072.

[0302] It is considered to arrange the position of the air damper 1040 at a position higher than the heat exchanger 1011 to prevent interference between the second blade 1042 and the upper part of the heat exchanger 1011 when the air damper 1040 is opened and closed. However, in this case, the height of the main body case 1001 will increase. Thus, in the heat exchanger 1011 of Embodiment 2, as ​ and ​As shown, in the area where the rotation area of the air damper 1040 and the heat exchanger 1011 interfere, there is an inclined portion 1011c that can avoid interfering with the air damper 1040. In this case, the height of the main body case 1001 can be suppressed. Even in the case of having the inclined portion 1011c, the second blade 1042 in the closed state can block a part of the radiator 1008, reducing the air volume of the second air passage 1072 to about 1 / 2.

[0303] The shape of the inclined portion 1011c can be set through experiments or simulations. The inclined portion 1011c of the air damper 1040 in this first example has an inclination with a gradually decreasing height towards the rear side.

[0304] When the air suction port 1002 is arranged on the opposite side of the suction port 1068 of the blower 1006 with the heat absorber 1010 interposed therebetween, the air in the first part 1061 is deflected towards the center of the heat absorber 1010. Since the air is deflected to one side, it is difficult for dew to form in the peripheral parts of the heat absorber 1010 and the radiator 1008, and the dehumidifying ability is reduced. Therefore, the air suction ports 1002 are respectively provided on the left and right side faces 1021 of the main body case 1001. In this case, the unevenness of the air flowing into the heat absorber 1010 is improved, the air flows to the entire heat absorber 1010, the dew formation area can be increased, and the dehumidifying ability can be improved.

[0305] In the second embodiment, as ​ shown, in order to smoothly guide the inhaled air 1060 from the side face 1021 to the heat absorber 1010, there is a heat absorber gap 1015 between the front surface portion 1022 of the main body case 1001 and the heat absorber 1010. Here, when the heat absorber gap 1015 is too large, the balance of the air volume in each path deteriorates. Therefore, the opening area of the heat absorber gap 1015 is smaller than the relative area of the heat absorber 1010 facing the front surface portion 1022 and larger than the area of a specific part 1088 facing the rear surface portion 1023 of the main body case 1001. In this case, since the air volume of the first air passage 1071 is reduced and the air volume of the third bypass air passage 1073 is increased, the dehumidifying ability of the dehumidifying device 1100 is improved, and power consumption can be suppressed.

[0306] The above is the description of the air damper 1040.

[0307] (Heat absorber gap)

[0308] Next, with reference to ​ the heat absorber gap 1015 will be described. ​This is a front view (orthographic view) schematically showing the outline of the air inlet 1068 of the blower 1006 and the outline of the heat absorber 1010. From the perspective of overall condensation occurring on the heat absorber 1010, it is preferable that the air flowing toward the heat absorber 1010 diffuses over the entire heat absorber 1010 before flowing into the heat absorber 1010. As described above, the dehumidifying device 1100 has a heat absorber gap 1015 between the front surface portion 1022 of the main body case 1001 and the heat absorber 1010. However, depending on the shape of the heat absorber gap 1015, there are cases where the diffusion effect cannot be sufficiently obtained. Therefore, the air inlet 1068 of the blower 1006 in Embodiment 2 is smaller than the heat absorber 1010 when viewed from the front. In addition, the center 1068c of the air inlet 1068 is arranged at the same position as the left-right center 1010c of the heat absorber 1010. In this case, compared with the case where the air suction port 1002 is arranged facing the heat absorber 1010, the air diffuses in the heat absorber gap 1015 and flows in. Therefore, the unevenness of the air bias toward the center is reduced, and condensation occurs over the entire heat absorber 1010 or radiator 1008, thereby improving the dehumidifying ability.

[0309] The heat absorber side cylinder part 1016 will be described. ​ This is a perspective view schematically showing the heat absorber 1010, the heat absorber side cylinder part 1016, and the front surface portion 1022, and it is a view when observed from the right rear obliquely. ​ This is a perspective view schematically showing the heat absorber 1010 and the heat absorber side cylinder part 1016, and it is a view when observed from the right front obliquely. In ​ the front surface portion 1022 is shown by a dashed line.

[0310] ​ As shown, the heat absorber side cylinder part 1016 extends a distance 1016g from the outer periphery of the heat absorber 1010 toward the front surface portion 1022. In addition, the heat absorber gap 1015 is formed between the extended end 1016a of the heat absorber side cylinder part 1016 and the front surface portion 1022. In this case, since a space 1016h surrounded by the heat absorber side cylinder part 1016 is formed between the heat absorber 1010 and the front surface portion 1022, the air can flow in smoothly. Thus, the air flows into the center of the heat absorber 1010 within this space and spreads over the entire space. Therefore, condensation occurs over the entire heat absorber 1010, and the dehumidifying ability of the dehumidifying device 1100 is improved.

[0311] ​In the heat absorber side cylinder part 1016, the distance 1016g extending from the outer periphery of the heat absorber 1010 can be, for example, 5 mm or more and 50 mm or less. The distance 1016g in the second embodiment is set to 25 mm. In addition, the width of the heat absorber gap 1015 in the front-rear direction can be 5 mm or more and 20 mm or less. The width of the heat absorber gap 1015 in the front-rear direction in the second embodiment is set to 10 mm.

[0312] In the second embodiment, the heat absorber side cylinder part 1016 (for example, the upper surface part 1016c) in the second embodiment contacts the front surface part 1022. The heat absorber gap 1015 includes openings 1016e formed in the left and right side surface parts 1016b of the heat absorber side cylinder part 1016. Since the dehumidifying device 1100 including the heat absorber side cylinder part 1016 can separate the air flowing through the second air passage 1072 and the first air passage 1071 respectively, noise caused by wind interference can be suppressed. In addition, the dehumidifying device 1100 including the heat absorber side cylinder part 1016 increases the air volume of the second air passage by reducing the turbulence of each air flow, so the dehumidifying ability is improved. As an example, the opening 1016e has a rectangular shape with a longer vertical side than the front-rear side.

[0313] In the second embodiment, the opening 1016e is arranged at a position in front of the front-rear center of the heat absorber side cylinder part 1016. In this case, since the opening 1016e is spaced apart from the heat absorber 1010 in front of the heat absorber 1010, the air in the first part 1061 flowing in from the opening 1016e is likely to diffuse, and condensation occurs on the heat absorber 1010. Therefore, the dehumidifying ability of the dehumidifying device 1100 is improved.

[0314] In the second embodiment, as ​ shown, a part of the refrigerant pipe 1083 extending from the heat absorber 1010 to the compressor 1007 and the U-shaped pipe 1083b are arranged inside the heat absorber side cylinder part 1016. In this case, since a part of the refrigerant pipe 1083 also performs heat exchange to cause condensation of the suction air, the overall dehumidifying ability is improved.

[0315] In this way, since heat absorbing components such as the heat absorber 1010, the refrigerant pipe 1083, and the U-shaped pipe 1083b are surrounded by the heat absorber side cylinder part 1016, the air between the main body case 1001 and the heat absorber side cylinder part 1016 hardly contacts the heat absorbing components. Therefore, it is difficult to generate condensation on the main body case 1001 or its periphery, and moisture around the main body case 1001 can be prevented.

[0316] In Embodiment 2, the heat absorber gaps 1015 are provided on the left and right side faces 1016b of the heat absorber side cylinder portion 1016, and when viewed from the front, the left and right heat absorber gaps 1015 are arranged symmetrically left and right. In this case, the wind from the left and right side faces 1016b is evenly sucked into the heat absorber side cylinder portion 1016 and diffused. Therefore, since the dehumidifying device 1100 causes dew condensation on the entire heat absorber 1010, the dehumidifying ability is improved.

[0317] In Embodiment 2, the left and right heat absorber gaps 1015 are arranged at equal distances from the left and right centers of the heat absorber side cylinder portion 1016. In this case, the wind from the left and right side faces 1016b is sucked in more evenly, which is beneficial to improving the dehumidifying ability.

[0318] The operation of the dehumidifying device 1100 in Embodiment 2 will be described. When the blower 1006 operates, the intake air 1060 is sucked into the main body case 1001 from the air intake port 1002 provided on the side face 1021. The intake air 1060 is divided into a first portion 1061, a second portion 1062, a third portion 1063, and a fourth portion 1064. The first portion 1061 flows into the radiator 1008 through the first passage 1017 of the heat absorber 1010 and the heat exchanger 1011 to cool the radiator 1008. The second portion 1062 flows into the radiator 1008 through the second passage 1018 of the heat exchanger 1011 to cool the radiator 1008.

[0319] The third portion 1063 flows into the radiator 1008 through the third bypass air passage 1073 that bypasses the heat absorber 1010 and the heat exchanger 1011 to cool the radiator 1008. The fourth portion 1064 flows into the radiator 1008 through the radiator gap 1019 from the first bypass air passage 1074 and the second bypass air passage 1075 that bypass the heat absorber 1010 and the heat exchanger 1011 to cool the radiator 1008. The first portion 1061, the second portion 1062, the third portion 1063, and the fourth portion 1064 that have cooled the radiator 1008 are blown out of the main body case 1001 from the air outlet 1004 via the blower 1006.

[0320] The first portion 1061 and the second portion 1062 of the intake air 1060 are cooled by the heat absorber 1010 or the heat exchanger 1011 of the refrigeration cycle, causing dew condensation and drying. The dried first portion 1061 and second portion 1062 are blown out from the air outlet 1004, thereby reducing the humidity of the space around the dehumidifying device 1100.

[0321] The dehumidifying device 1100 in Embodiment 2 includes a main body case 1001 having an air suction port 1002 and an air blow-out port 1004. An endothermic device 1010, a heat exchanger 1011, a radiator 1008, and a blower 1006 are arranged in the main body case 1001. The dehumidifying device 1100 is configured such that, under the action of the blower 1006, the sucked air 1060 sucked into the main body case 1001 from the air suction port 1002 is divided into a first part 1061, a second part 1062, and a third part 1063. It has: a first dehumidification path 1051 that blows the first part 1061 of the sucked air 1060 out of the main body case 1001 from the air blow-out port 1004 via the endothermic device 1010, the first passage 1017 of the heat exchanger 1011, and the radiator 1008; a second dehumidification path 1052 that blows the second part 1062 of the sucked air 1060 out of the main body case 1001 from the air blow-out port 1004 via the second passage 1018 of the heat exchanger 1011 and the radiator 1008; and a bypass air passage 1073 that blows the third part 1063 of the sucked air 1060 out of the main body case 1001 from the air blow-out port 1004 via a specific part 1088 of the radiator 1008 without passing through the endothermic device 1010 and the heat exchanger 1011. The dehumidifying device 1100 is provided with a damper 1040 for opening and closing the bypass air passage 1073 in the bypass air passage 1073, and has a temperature sensor 1048 for detecting the temperature of the sucked air 1060.

[0322] The dehumidifying device 1100 in Embodiment 2 has a damper 1040 for opening and closing the bypass air passage 1073. When the temperature is low, the damper 1040 is closed to avoid overcooling of the radiator 1008. On the other hand, when the temperature is high, the damper 1040 is opened to improve the cooling capacity of the radiator 1008, thereby enabling the dehumidifying capacity of the dehumidifying device 1100 to be improved. As a result, if the dehumidifying capacity is the same, the power consumption of the dehumidifying device can be reduced.

[0323] ​ is an exploded view of the heat exchanger 1011 of the dehumidifying device 1100 in Embodiment 2. ​ is a perspective view showing the heat exchanger 1011.

[0324] As ​ , ​ , ​ shown, in the heat exchanger 1011, the upper surface, which is the outer surface on the upper side of the heat exchanger 1011, is the inlet of the second passage 1018, and has an upper inclined surface 1011a that slopes downward as it goes from the side of the endothermic device 1010 toward the side of the radiator 1008. The third dehumidification path 1053 blows out of the main body case 1001 from the air blow-out port 1004 via the radiator 1008 above the lower end of the upper inclined surface 1011a of the heat exchanger 1011.

[0325] Accordingly, without increasing the number of stages (layers) of the radiator 1008, the amount of air passing through the radiator 1008 increases, so the temperature of the radiator 1008 decreases, and the temperature of the heat absorber 1010 also decreases. The surface area of the inlet of the second passage 1018 on the upper surface of the heat exchanger 1011 becomes larger, so the wind speed slows down, heat exchange occurs slowly, and dew condensation is likely to occur. As a result, the height of the main body case 1001 can be suppressed, and the dehumidification efficiency can be improved, and the dehumidification capacity can be improved even when the temperature is low.

[0326] In addition, the shape of the plurality of first passages 1017 that extend first horizontally in the lateral direction of the heat exchanger 1011 has a radially inclined surface from the heat absorber 1010 side toward the radiator 1008 side. Specifically, the first passage 1017 of the heat exchanger 1011 has a plurality of upper first passages 1017a and a plurality of lower first passages 1017b that are arranged in the vertical direction. The upper first passage 1017a is arranged at a position above the lower first passage 1017b and extends obliquely downward from the heat absorber 1010 side toward the radiator 1008 side. The lower first passage 1017b is arranged at a position below the upper first passage 1017a and extends obliquely upward from the heat absorber 1010 side toward the radiator 1008 side.

[0327] Due to the shape of the first passage 1017 having a radially inclined surface, the residence time of the air X in the heat exchanger 1011 becomes longer. Therefore, the time for the air Y flowing through the second passage 1018 to be cooled by the air X flowing through the first passage 1017 becomes longer, and the dehumidification capacity can be improved.

[0328] In addition, there is a communication path 1017c that connects the plurality of upper first passages 1017a and the plurality of lower first passages 1017b of the first passage 1017 of the heat exchanger 1011. The dew condensation water scattered from the heat absorber 1010 side to the upper first passage 1017a of the heat exchanger 1011 flows into the lower first passage 1017b via the communication path 1017c from the upper first passage 1017a. The lower first passage 1017b extends obliquely downward as it goes from the radiator 1008 side toward the heat absorber 1010 side, so it is easy to flow from the lower first passage 1017b to the heat absorber 1010 side. In addition, since the lower first passage 1017b extends obliquely downward as it goes from the radiator 1008 side toward the heat absorber 1010 side, the dew condensation water scattered from the heat absorber 1010 side to the lower first passage 1017b of the heat exchanger 1011 is likely to flow from the lower first passage 1017b to the heat absorber 1010 side.

[0329] In this way, the dew condensation water scattered from the side of the heat absorber 1010 to the heat exchanger 1011 easily flows toward the side of the heat absorber 1010. In addition, the dew condensation water of the heat exchanger 1011 flows toward the radiator 1008 side and will not be vaporized due to the heat of the radiator 1008. As a result, the dew condensation water can be effectively utilized and the dehumidifying ability can be improved.

[0330] ​ It is a perspective view of the upper protruding member covering the upper surface of the heat exchanger.

[0331] As ​ , ​ , ​ , ​ As shown, the air inlets 1002 are arranged on two side surfaces of the main body case 1001 that are opposite to each other in the second lateral direction, and the second lateral direction is the lateral direction orthogonal to the first lateral direction. A plurality of first passages 1017 and second passages 1018 of the heat exchanger 1011 are alternately arranged in the second lateral direction. An upper protruding member 1085a is provided above the upper surface of the heat exchanger 1011, and the upper protruding member 1085a is spaced apart from the upper surface of the heat exchanger 1011 by a predetermined distance and covers the upper surface of the heat exchanger 1011. The upper protruding member 1085a has an opening 1085e at the central portion in the second lateral direction of the main body case 1001. The opening 1085e is provided at the central portion of the upper protruding member 1085a, and the opening 1085e has a structure smaller than the width formed by laminating a plurality of resin plates of the heat exchanger 1011.

[0332] Since the air inlets 1002 are arranged on two side surfaces of the main body case 1001 that are opposite to each other in the second lateral direction which is orthogonal to the first lateral direction of the main body case 1001, air easily flows toward both ends in the second lateral direction of the main body case 1001 in the heat exchanger 1011. By providing the opening 1085e at the central portion in the second lateral direction of the main body case 1001, the air volume flowing through the second passage 1018 at the central portion of the heat exchanger 1011 increases, and the unevenness (bias to one side) of the flowing air volume is suppressed. The unevenness of the air flowing into the second passage 1018 is improved. By making the air flow through the entire second passage 1018 of the heat exchanger 1011, the heat-exchanged area increases, dew condensation is likely to occur, and the dehumidifying ability can be improved.

[0333] As ​ and ​As shown, the heat exchanger 1011 has an upper inclined surface 1011a that slopes downward as it goes from the side of the heat absorber 1010 toward the side of the radiator 1008. The damper 1040 is arranged so as to be able to enter between the inclined surface 1011a and the radiator 1008 and opens and closes. Specifically, the damper 1040 opens and closes a part of the third dehumidification path and the upper inclined surface 1011a of the heat exchanger 1011. When viewed laterally from the second direction, the damper 1040 has a substantially L-shaped configuration that protrudes toward the radiator 1008. When the damper 1040 opens the third dehumidification path 1053 and the upper inclined surface 1011a of the heat exchanger 1011, the upper end of the damper 1040 is located below the upper end of the radiator 1008 and above the upper end of the heat exchanger 1011. On the other hand, the lower end of the damper 1040 is located below the upper end of the upper inclined surface 1011a.

[0334] Since the damper 1040 is closed at low temperatures, the amount of air flowing through the first air passage 1071 of the heat absorber 1010 increases. As a result, the temperature of the heat absorber 1010 rises, and it becomes difficult for the heat absorber 1010 to freeze. Since the damper 1040 is opened at high temperatures, the amount of air flowing through the third bypass air passage 1073 of the radiator 1008 increases. As a result, the temperature of the radiator 1008 drops, and the power consumption of the dehumidifying device 1100 can be suppressed. In addition, since the temperature of the radiator 1008 drops, the temperature of the heat absorber 1010 also drops, and dew condensation is likely to occur. As a result, the height of the device main body can be suppressed, while the dehumidification efficiency is improved, and the dehumidifying ability can be improved even when the temperature is low.

[0335] As described above, the present invention has been described based on Embodiment 2. Those skilled in the art should understand that this Embodiment 2 is exemplary, and various modifications can be made to the combination of each component and each processing procedure, and these modifications are also within the scope of the present invention.

[0336] In the description of Embodiment 2, a structure including bypass air passages (1074, 1075) has been exemplified, but it is not necessarily required to include bypass air passages (1074, 1075).

[0337] In the description of Embodiment 2, a structure in which the air inlet 1002 is provided in the side surface portion 1021 of the main body case 1001 has been exemplified, but it is not limited thereto. The air inlet 1002 may also be provided in the front surface portion 1022 of the main body case 1001.

[0338] Industrial Applicability

[0339] The present invention is expected to function as a dehumidifying device for dehumidifying the air in spaces such as homes and offices.

Claims

1. A dehumidifying device, characterized in that, Comprising: A main body case having an air suction port and an air blow-out port, An absorber, a heat exchanger, a radiator and a blower are arranged in the main body case, Under the action of the blower, the sucked air sucked into the main body case from the air suction port is divided into a first part, a second part and a third part, The dehumidifying device has: A first dehumidification path for blowing out the first part of the sucked air from the air blow-out port to the outside of the main body case via the absorber, the first passage of the heat exchanger and the radiator; A second dehumidification path for blowing out the second part of the sucked air from the air blow-out port to the outside of the main body case via the second passage of the heat exchanger and the radiator; And A bypass air passage for blowing out the third part of the sucked air from the air blow-out port to the outside of the main body case via a specific part of the radiator without passing through the absorber and the heat exchanger, A damper for opening and closing the bypass air passage is provided in the bypass air passage, The dehumidifying device has a temperature sensor for detecting the temperature of the sucked air.

2. The dehumidifying device according to claim 1, wherein: When the detected temperature of the temperature sensor is less than the threshold value, the damper is closed to increase the air volume of the first dehumidification path, When the detected temperature of the temperature sensor is above the threshold value, the damper is opened to increase the air volume of the bypass air passage.

3. The dehumidifying device according to claim 2, wherein: The specific part is the upper part of the radiator.

4. The dehumidifying device according to claim 2, wherein: The specific part is a part near the end of either the left or right side of the radiator.

5. The dehumidifying device according to claim 2, wherein: In a state where the damper is closed, the air volume of the second dehumidification path is reduced compared to a state where the damper is open.

6. The dehumidifying device according to claim 2, wherein, The damper is configured to be rotatable about a rotation axis and has an L-shaped cross section when viewed from a direction along the rotation axis, The heat exchanger has an inclined portion capable of avoiding interference with the damper in a region where the damper rotates and interferes with the heat exchanger.

7. The dehumidifying device according to claim 2, wherein, The air suction port is arranged on the side surface portion of the main body case, The absorber, the heat exchanger, the radiator and the blower are arranged in a front-rear direction, There is an absorber gap between the front surface portion of the main body case and the absorber, The opening area of the absorber gap is smaller than the relative area of the absorber facing the front surface portion and larger than the area of the specific part facing the rear surface portion of the main body case.

8. A dehumidifying device, characterized in that, Comprising: A main body case having an air suction port and an air blow-out port, An absorber, a heat exchanger, a radiator and a blower are arranged in the main body case, The heat exchanger has: a plurality of first passages extending in a first lateral direction as a lateral direction, and a plurality of second passages extending in a longitudinal direction independent of the first passages, and heat exchange is performed between the air flowing in the first passages and the air flowing in the second passages. Under the action of the blower, the sucked air sucked into the main body case from the air suction port is divided into a first part, a second part, and a third part. The dehumidifying device has: A first dehumidifying path for blowing out the first part of the sucked air from the air blowout port to the outside of the main body case via the heat absorber, the first passage of the heat exchanger, and the radiator. A second dehumidifying path for blowing out the second part of the sucked air from the air blowout port to the outside of the main body case via the second passage of the heat exchanger and the radiator. And A third dehumidifying path for blowing out the third part of the sucked air from the air blowout port to the outside of the main body case via the radiator without passing through the heat absorber and the heat exchanger. The heat absorber, the heat exchanger, and the radiator are arranged in sequence in the first lateral direction. An upper surface as an outer surface on the upper side of the heat exchanger forms an inlet of the second passage, and has an upper inclined surface that slopes downward as it goes from the heat absorber side to the radiator side. The third dehumidifying path blows out air from the air blowout port to the outside of the main body case via the radiator above the lower end of the upper inclined surface of the heat exchanger.

9. The dehumidifying device according to claim 8, wherein: The first passage of the heat exchanger has: a plurality of upper first passages and a plurality of lower first passages arranged in the vertical direction. The upper first passages are arranged at a position above the lower first passages, and extend obliquely downward as it goes from the heat absorber side to the radiator side. The lower first passages are arranged at a position below the upper first passages, and extend obliquely upward as it goes from the heat absorber side to the radiator side.

10. The dehumidifying device according to claim 9, wherein: The first passage of the heat exchanger has a communication path that connects the plurality of upper first passages and the plurality of lower first passages. The communication path extends in the vertical direction.

11. The dehumidifying device according to claim 9, wherein: The air suction port is arranged on two side surfaces of the main body case that are opposite to each other in a second lateral direction, where the second lateral direction is a lateral direction orthogonal to the first lateral direction. The plurality of first passages and the plurality of second passages of the heat exchanger are arranged alternately in the second lateral direction. Above the upper surface of the heat exchanger, there is an upper protruding member that covers the upper surface of the heat exchanger at a predetermined distance from the upper surface of the heat exchanger. The upper protruding member has an opening at the central portion of the second lateral direction of the main body case.

12. The dehumidifying device according to claim 9, wherein: There is a damper for opening and closing a part of the upper inclined surface of the third dehumidification path and the heat exchanger. The damper is configured to be able to open and close by entering between the upper inclined surface and the radiator.

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