Humidifying device and control method thereof

Abstract

The invention discloses a humidity adjusting device and a control method thereof, which are favorable for ensuring the detection precision of a sensor assembly. The humidity adjusting device is provided with a shell, the shell is provided with an air inlet and an air outlet, a temperature adjusting part and a humidity adjusting part are arranged in the shell, the temperature adjusting part and the humidity adjusting part are arranged on the flowing path of airflow from the air inlet to the air outlet, the temperature adjusting part is closer to the air inlet than the humidity adjusting part, and the humidity adjusting part is arranged on the air inlet. A sensor assembly is arranged between the temperature adjusting part and the humidity adjusting part and comprises a detection part, the detection part is arranged on the upper portion in the shell, the distance between the bottom end of the detection part and a top plate of the shell is L1, the height of the temperature adjusting part is L2, and L1 is 30% or below of L2.

Description

Technical Field

[0001] The invention relates to a humidity control device and a control method thereof. Background Art

[0002] In the past, there was a humidity control device comprising a shell, the shell being provided with an air inlet and an air outlet, a heat exchanger and a humidifier being provided inside the shell, the heat exchanger and the humidifier being arranged on a flow path of the airflow from the air inlet to the air outlet, and the heat exchanger being closer to the air inlet than the humidifier.

[0003] In the above-mentioned humidity control device, in order to better control the temperature and humidity of the airflow discharged from the air outlet, it is possible to consider setting a sensor component in the shell and controlling the heating amount of the heat exchanger and the humidification amount of the humidifier according to the detection results of the sensor component.

[0004] However, in the above case, the detection accuracy of the sensor component needs to be ensured. Summary of the invention

[0005] The present invention is completed in view of the above-mentioned problems, and its purpose is to provide a humidity control device and a control method thereof, which are helpful to ensure the detection accuracy of the sensor component.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a humidity control device, comprising a shell, the shell being provided with an air inlet and an air outlet, a temperature control part and a humidity control part being provided in the shell, the temperature control part and the humidity control part being arranged on a flow path of the airflow from the air inlet to the air outlet, and the temperature control part being closer to the air inlet than the humidity control part, wherein a sensor assembly is provided between the temperature control part and the humidity control part, the sensor assembly comprising a detection part, the detection part being provided at an upper part in the shell, the distance between the bottom end of the detection part and the top plate of the shell being L1, the height of the temperature control part being L2, and L1 being less than 30% of L2.

[0007] According to the humidity control device of the present invention, a sensor assembly is provided between the temperature control part and the humidity control part, the sensor assembly includes a detection part, the detection part is arranged in the upper part of the shell, the distance between the bottom end of the detection part and the top plate of the shell is L1, the height of the temperature control part is L2, and L1 is less than 30% of L2. Therefore, the influence of the radiant heat of the temperature control part, the water in the drain pan below, the humidity control part after water inflow, etc. on the detection value of the detection part can be suppressed, the detection accuracy of the sensor assembly is ensured, and the obstruction of the airflow caused by the detection part can also be suppressed.

[0008] Furthermore, in the humidity control device of the present invention, preferably, a maximum offset amount of the detection portion in the horizontal direction relative to a center line of the air inlet is L3, and L3 is 50 mm or less.

[0009] According to the humidity control device of the present invention, the maximum offset of the detection part in the horizontal direction relative to the center line of the air inlet is L3, and L3 is less than 50 mm. Therefore, the detection part can detect the airflow passing through the vicinity of the center position of the air inlet, and it is easy to ensure the accuracy of the airflow collected by the detection part, thereby further ensuring the detection accuracy of the sensor assembly.

[0010] In addition, in the humidity controlling device of the present invention, the sensor assembly preferably includes a mounting frame, the detection unit is supported on the shell via the mounting frame, the shell has a first side plate provided with the air inlet, and the orthographic projection of the mounting frame on the first side plate does not overlap with the air inlet.

[0011] According to the humidity control device of the present invention, the sensor assembly includes a mounting frame, and the detection part is supported on the shell via the mounting frame. The shell has a first side panel provided with an air inlet, and the orthographic projection of the mounting frame on the first side panel does not overlap with the air inlet. Therefore, the obstruction of the mounting frame to the airflow can be suppressed and the noise can be reduced.

[0012] Furthermore, in the humidity control device of the present invention, preferably, the upper side of the mounting frame is connected to the top plate, the lower side of the mounting frame is in the flow path, and the highest position of the air inlet is not higher than the lowest position of the mounting frame.

[0013] According to the humidity control device of the present invention, the upper side of the mounting frame is connected to the top plate, the lower side of the mounting frame is in the flow path, and the highest position of the air inlet is not higher than the lowest position of the mounting frame. Therefore, the obstruction of the airflow caused by the mounting frame can be suppressed and the noise can be reduced.

[0014] Furthermore, in the humidity control device of the present invention, it is preferred that the mounting frame include a plate-shaped portion against which the detection portion abuts, and an angle formed between the plate-shaped portion and a center line of the air inlet is 10 degrees or less.

[0015] According to the humidity control device of the present invention, the mounting frame has a plate-like portion for the detection part to abut against, and the angle formed by the plate-like portion and the center line of the air inlet is less than 10 degrees. Therefore, it helps to fix the position of the detection part, ensure the detection accuracy of the detection part, and prevent or suppress the obstruction of the airflow caused by the plate-like portion.

[0016] Furthermore, in the humidity control device of the present invention, it is preferred that the bottom end of the detection portion is lower than the highest position of the air inlet and not lower than the center line of the air inlet.

[0017] According to the humidity control device of the present invention, the bottom end of the detection part is lower than the highest position of the air inlet and not lower than the center line of the air inlet. Therefore, it is easier to ensure the accuracy of the airflow collected by the detection part, thereby further ensuring the detection accuracy of the sensor assembly.

[0018] Furthermore, in the humidity control device of the present invention, it is preferable that the detection unit protrudes downward from the highest position of the air inlet by 5 mm to 10 mm.

[0019] According to the humidity control device of the present invention, the detection part protrudes downward from the highest position of the air inlet by more than 5 mm and less than 10 mm. Therefore, while ensuring the accuracy of the detection part in collecting airflow, the detection part is prevented from being deformed by the airflow and affecting the detection accuracy.

[0020] Furthermore, in the humidity control device of the present invention, it is preferable that a distance between a bottom end of the detection portion and the top plate is 40 mm to 60 mm.

[0021] According to the humidity control device of the present invention, the distance between the bottom end of the detection part and the top plate is 40 mm to 60 mm, thereby ensuring the detection accuracy of the sensor assembly and suppressing the obstruction of the airflow caused by the detection part.

[0022] In the humidity control device of the present invention, preferably, the shortest distance between the detection unit and the temperature control unit is L4, the shortest distance between the temperature control unit and the humidity control unit is L5, and L4 is one third or more of L5.

[0023] According to the humidity control device of the present invention, the distance L4 between the detection part and the temperature control part is more than one third of the distance L5 between the temperature control part and the humidity control part. Therefore, the influence of the temperature control part on the detection part and the influence of the humidity control part on the detection part can be suppressed at the same time, further ensuring the detection accuracy of the sensor component.

[0024] Furthermore, in the humidity control device of the present invention, it is preferred that the temperature control unit includes at least one of a heat exchanger and an electric heater.

[0025] Furthermore, in the humidity control device of the present invention, it is preferred that the humidity control section includes at least one of a moisture permeable membrane, a spray humidifier, and a wheel humidifier.

[0026] Furthermore, in the humidity control device of the present invention, it is preferable that a distance between the detection unit and the temperature control unit is 50 mm or more.

[0027] According to the humidity control device of the present invention, the distance between the detection part and the temperature control part is greater than 50 mm, so the influence of the radiant heat of the temperature control part on the detection value of the detection part can be well prevented, thereby ensuring the detection accuracy of the sensor assembly.

[0028] Furthermore, in the humidity control device of the present invention, it is preferable that L1 is one tenth or more of L2.

[0029] Furthermore, in the humidity control device of the present invention, it is preferable that the detection portion has a strip shape extending in the up-down direction.

[0030] According to the humidity control device of the present invention, the detection portion has a strip shape extending in the up-down direction, and therefore, it is possible to further suppress obstruction of the airflow by the detection portion.

[0031] In addition, in order to achieve the above-mentioned purpose, the present invention provides a control method for a humidity control device, which controls any of the above-mentioned humidity control devices, wherein when the detection value of the detection unit is lower than a first target value, the output of the temperature control unit is increased to increase the temperature of the airflow heated by the temperature control unit, and when the detection value of the detection unit exceeds a second target value higher than the first target value, the output of the temperature control unit is reduced to reduce the temperature of the airflow heated by the temperature control unit.

[0032] According to the control method of the humidity control device of the present invention, when the detection value of the detection unit is lower than the first target value, the output of the temperature control unit is increased to increase the temperature of the airflow heated by the temperature control unit. When the detection value of the detection unit exceeds a second target value higher than the first target value, the output of the temperature control unit is reduced to reduce the temperature of the airflow heated by the temperature control unit. Therefore, it is easy to ensure that the airflow heated by the temperature control unit is in a suitable temperature range, thereby improving the humidification effect of the humidification unit.

[0033] Furthermore, in the control method of the humidity control device of the present invention, it is preferred that the temperature control unit includes a heat exchanger, and the humidity control device includes an electric valve, the electric valve controls the flow of refrigerant to the heat exchanger, and when the detection value of the detection unit is lower than a first target value, the opening of the electric valve is increased, and when the detection value of the detection unit exceeds the second target value, the opening of the electric valve is reduced; or, the temperature control unit includes an electric heater, and when the detection value of the detection unit is lower than the first target value, the power-on time of the electric heater is extended, and when the detection value of the detection unit exceeds the second target value, the power-on time of the electric heater is shortened.

[0034] In addition, in the control method of the humidity control device of the present invention, it is preferred that the temperature control part includes a heat exchanger, and the temperature control part includes a plurality of electric heaters. When the detection value of the detection part is lower than the first target value, the number of the electric heaters powered on is increased, and when the detection value of the detection part exceeds the second target value, the number of the electric heaters powered on is reduced.

[0035] (Effects of the Invention)

[0036] According to the present invention, a sensor assembly is provided between the temperature regulating part and the humidity regulating part, the sensor assembly includes a detection part, the detection part is provided in the upper part of the shell, the distance between the bottom end of the detection part and the top plate of the shell is L1, the height of the temperature regulating part is L2, and L1 is less than 30% of L2. Therefore, the influence of the radiant heat of the temperature regulating part, the water in the drain pan below, the humidity regulating part after water inflow, etc. on the detection value of the detection part can be suppressed, the detection accuracy of the sensor assembly is ensured, and the obstruction of the airflow caused by the detection part can also be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a bottom view schematically showing the humidity control device according to the embodiment of the present invention.

[0038] Figure 2 The figure is a side cross-sectional view schematically showing the center line of the air inlet of the humidity control device according to the embodiment of the present invention.

[0039] Figure 3 yes Figure 2 A partial enlarged view of .

[0040] Figure 4 It is a bottom view schematically showing a part of the sensor module in the humidity control device according to the embodiment of the present invention.

[0041] Figure 5A It is a side view schematically showing the airflow distribution state of the humidity control device according to the embodiment of the present invention when operating.

[0042] Figure 5B It is a bottom view schematically showing the airflow distribution state of the humidity control device according to the embodiment of the present invention when it is operating.

[0043] (Explanation of symbols)

[0044] 1 Humidity Control Device

[0045] 10 Housing

[0046] 11 Top Plate

[0047] 12 Bottom Plate

[0048] 13 Side Panel

[0049] 131 First side panel

[0050] 132 Second side panel

[0051] 133 Third side panel

[0052] 134 Fourth side panel

[0053] 20 Temperature Control Unit

[0054] 30 Humidity Control Department

[0055] 40 Sensor assembly

[0056] 41. Inspection Department

[0057] 42 Mounting bracket

[0058] 421 plate-shaped part

[0059] 422 Another plate-like part

[0060] 50 Water inlet assembly

[0061] 51 Water supply pipeline

[0062] 52 Solenoid valve

[0063] 53 Water Tank

[0064] JF Air Inlet

[0065] JFa Highest position of air inlet

[0066] CF air outlet

[0067] ZX air inlet centerline DETAILED DESCRIPTION

[0068] Next, based on the actual installation status, combined with Figures 1 to 4 A humidity control device according to an embodiment of the present invention is described. Figure 1 is a bottom view schematically showing a humidity control device according to an embodiment of the present invention, Figure 2 is a side cross-sectional view schematically showing the center line of the air inlet of the humidity control device according to the embodiment of the present invention, Figure 3 yes Figure 2 A partial enlarged view of Figure 4 is a bottom view schematically showing a portion of a sensor assembly in a humidity control device according to an embodiment of the present invention, Figure 5A is a side view schematically showing the airflow distribution of the humidity control device according to the embodiment of the present invention when it is working. Figure 5B It is a bottom view schematically showing the airflow distribution state of the humidity control device according to the embodiment of the present invention when it is operating.

[0069] Here, for the sake of convenience, three mutually orthogonal directions are set as X, Y and Z directions, and one side of the X direction is set as X1, the other side of the X direction is set as X2, one side of the Y direction is set as Y1, the other side of the Y direction is set as Y2, one side of the Z direction is set as Z1, and the other side of the Z direction is set as Z2, and the Z1 direction corresponds to the upper side, for example, and the Y direction corresponds to the horizontal direction, for example.

[0070] (Overall structure of humidity control device)

[0071] like Figure 1and Figure 2 As shown, the humidity control device 1 has a shell 10, and the shell 10 is provided with an air inlet JF and an air outlet CF. A temperature control part 20 and a humidity control part 30 are provided in the shell 10. The temperature control part 20 and the humidity control part 30 are arranged on the flow path of the airflow from the air inlet JF to the air outlet CF, and the temperature control part 20 is closer to the air inlet JF than the humidity control part 30; and a sensor assembly 40 is provided between the temperature control part 20 and the humidity control part 30, and the sensor assembly 40 includes a detection part 41, and the detection part 41 is arranged on the Z1 direction side (i.e., the upper part) in the shell 10.

[0072] Here, if Figure 1 As shown, a water inlet assembly 50 is further disposed in the housing 10 , and a main body of the water inlet assembly 50 is disposed outside the flow path of the airflow for supplying water to the humidity conditioning unit 20 .

[0073] In addition, although not shown in the figure, a drain pan is provided in the housing 10 , and the drain pan is located at the bottom of the housing 10 .

[0074] In addition, when the humidity control device 1 is working, the airflow flowing into the housing 10 from the air inlet JF flows through the heat exchange part 20 and the humidity control part 30 in sequence, and then flows out of the housing 10 from the air outlet CF.

[0075] (Structure of the housing)

[0076] like Figure 1 and Figure 2 As shown, the housing 10 is in a rectangular parallelepiped shape as a whole, and has a top plate 11, a bottom plate 12, and a side plate 13. The top plate 11 is spaced apart from the bottom plate 12 on the Z1 direction side (i.e., above). The side plate 13 connects the periphery of the top plate 11 with the periphery of the bottom plate 12, and includes: a first side plate 131 and a second side plate 132 spaced apart from each other in the X direction; and a third side plate 133 and a fourth side plate 134 spaced apart from each other in the Y direction.

[0077] Here, if Figure 1 and Figure 2 As shown, the first side plate 131 is provided with a circular air inlet JF, for example, and the second side plate 132 is provided with a circular air outlet CF, for example. Moreover, the center of the air inlet JF is offset from the center of the air outlet CF in the Y direction.

[0078] (Structure of the temperature control unit)

[0079] like Figure 1 As shown, the temperature adjustment unit 20 is used to adjust the temperature of the airflow flowing from the air inlet JF to the air outlet CF.

[0080] Here, if Figure 1As shown, the temperature control unit 20 is in the shape of a rectangular parallelepiped whose length direction is consistent with the Y direction. In addition, the temperature control unit 20 includes a heat exchanger, which is connected to an outdoor unit (not shown) via a refrigerant pipe to form a refrigerant circuit. In addition, the humidity control device 1 also has an electric valve for controlling the flow of refrigerant to the heat exchanger.

[0081] (Structure of the humidity control unit)

[0082] like Figure 1 As shown, the humidity control unit 30 is used to control the humidity of the airflow flowing from the air inlet JF to the air outlet CF.

[0083] Here, if Figure 1 As shown in FIG. 1 , the humidity conditioning unit 30 is in the shape of a rectangular parallelepiped as a whole, the longitudinal direction of which coincides with the direction Y. Furthermore, the humidity conditioning unit 30 includes a moisture permeable membrane.

[0084] (Structure of sensor assembly)

[0085] like Figure 1 and Figure 2 As shown, the sensor assembly 40 includes a detection portion 41 .

[0086] Here, if Figure 2 As shown, the detection part 41 is in a strip shape along the Z direction (i.e., the up-down direction). In addition, the distance between the bottom end of the detection part 41 and the top plate 11 of the housing 10 is L1, and the height of the temperature adjustment part 20 is L2, and L1 is less than 30% of L2. In addition, the distance between the bottom end of the detection part 41 and the top plate 11 is preferably 40 mm to 60 mm.

[0087] In addition, if Figures 1 to 3 As shown, the bottom end of the detection part 41 is lower than the highest position JFa of the air inlet JF, and is not lower than the center line ZX of the air inlet JF (when there are multiple air inlets JF, the uppermost air inlet JF is used as a reference). Furthermore, the detection part 41 preferably protrudes downward from the highest position JFa of the air inlet JF by more than 5 mm and less than 10 mm. Furthermore, the maximum offset of the detection part 41 relative to the center line ZX of the air inlet JF in the Y direction is L3, and preferably L3 is less than 50 mm. Furthermore, the distance between the detection part 41 and the temperature regulating part 20 is preferably more than 50 mm. Furthermore, the shortest distance between the detection part 41 and the temperature regulating part 20 is L4, and the shortest distance between the temperature regulating part 20 and the humidity regulating part 30 is L5, and preferably L4 is more than one third of L5.

[0088] In addition, if Figures 2 to 4As shown, the sensor assembly 40 also includes a mounting frame 42, and the detection unit 41 is supported on the housing 10 via the mounting frame 42. Furthermore, the orthographic projection of the mounting frame 42 on the first side plate 131 does not overlap with the air inlet JF. Furthermore, the Z1 direction side (i.e., the upper side) of the mounting frame 42 is connected to the top plate 11 (in the example shown in the figure, it is connected to the top plate 11 by screws), and the Z2 direction side (i.e., the lower side) of the mounting frame 42 is in the flow path of the airflow, and the highest position of the air inlet JF is not higher than the lowest position of the mounting frame 42. Furthermore, the mounting frame 42 has a plate-like portion 421 for the detection unit 41 to abut against (in the example shown in the figure, it also has another plate-like portion 422 connected to the plate-like portion 421 in an L shape, and the other plate-like portion 422 is provided with a through hole for screws to be screwed in to fix the mounting frame 42 to the top plate 11), and the angle θ formed by the plate-like portion 421 and the center line ZX of the air inlet JF is less than 10 degrees (in the example shown in the figure, as shown in FIG. Figure 1 As shown, the center line ZX of the air inlet JF passes through the center of the through hole in the center of the other plate-shaped portion 422 of the mounting frame 42).

[0089] In addition, if Figure 1 As shown, the detection portion 41 is approximately located on a line connecting the center of the air inlet JF and the center of the air outlet CF.

[0090] (Structure of water inlet assembly)

[0091] like Figure 1 As shown, the water inlet assembly 50 has a water supply pipeline 51, a solenoid valve 52 and a water tank 53. Moreover, the water supply pipeline 51 connects the humidity control unit 30 to the outside, the solenoid valve 52 and the water tank 53 are respectively arranged on the water supply pipeline 51, and the water tank 53 is located between the solenoid valve 52 and the humidity control unit 30.

[0092] (An example of the operation of the humidity control device)

[0093] In the humidity control device 1, for example, when the detection value of the detection unit 41 is lower than the first target value, the output of the temperature control unit 20 is increased to increase the temperature of the airflow heated by the temperature control unit 20. On the other hand, when the detection value of the detection unit 41 exceeds a second target value higher than the first target value, the output of the temperature control unit 20 is reduced to reduce the temperature of the airflow heated by the temperature control unit 20.

[0094] Specifically, when the detection value of the detection unit 41 is lower than the first target value, the opening of the electric valve that controls the flow of refrigerant to the heat exchanger is increased, and when the detection value of the detection unit 41 exceeds the second target value, the opening of the electric valve that controls the flow of refrigerant to the heat exchanger is reduced.

[0095] (Main Effects of the Present Embodiment)

[0096] According to the humidity control device 1 of the present embodiment, a sensor assembly 40 is provided between the temperature control section 20 and the humidity control section 30. The sensor assembly 40 includes a detection section 41. The detection section 41 is provided at the upper portion of the shell 10. The distance between the bottom end of the detection section 41 and the top plate 11 of the shell 10 is L1. The height of the temperature control section 20 is L2. L1 is less than 30% of L2. Therefore, the influence of the radiant heat of the temperature control section 20, the water in the drain pan below, the humidity control section 30 after water inflow, etc. on the detection value of the detection section 41 can be suppressed, thereby ensuring the detection accuracy of the sensor assembly 40. In addition, the obstruction of the airflow caused by the detection section 41 can be suppressed.

[0097] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned embodiments.

[0098] For example, in the above embodiment, L1 is preferably one tenth or more of L2.

[0099] Furthermore, in the above-mentioned embodiment, the temperature adjustment unit 20 includes the heat exchanger 21 , but the present invention is not limited thereto, and the temperature adjustment unit 20 may include an electric heater instead of the heat exchanger 1 .

[0100] Furthermore, in the above embodiment, the humidity control unit 60 includes a moisture permeable membrane, but the present invention is not limited thereto and may include a spray humidifier, a steam humidifier, a wheel humidifier, an ultrasonic humidifier, etc. instead of the moisture permeable membrane.

[0101] In addition, in the above-mentioned embodiment, the temperature regulating unit 20 includes a heat exchanger, but it is not limited to this. The temperature regulating unit 20 may also include an electric heater instead of a heat exchanger. In this case, the following control can be performed: when the detection value of the detection unit 41 is lower than the first target value, the power-on time of the electric heater is extended, and on the other hand, when the detection value of the detection unit 41 exceeds the second target value, the power-on time of the electric heater is shortened. And when a plurality of electric heaters are provided, the following control can be performed: when the detection value of the detection unit 41 is lower than the first target value, the number of electric heaters powered on is increased, and on the other hand, when the detection value of the detection unit 41 exceeds the second target value, the number of electric heaters powered on is reduced.

[0102] Furthermore, in the above embodiment, the center of the air inlet JF and the center of the air outlet CF are offset in the Y direction, but the present invention is not limited thereto. The center of the air inlet JF and the center of the air outlet CF may also be consistent in the Y direction.

[0103] It should be understood that within the scope of the present invention, various parts in the embodiments can be freely combined, or various parts in the embodiments can be appropriately deformed or omitted.

Claims

1. A humidity control device, comprising a housing, the housing being provided with an air inlet and an air outlet, a temperature control unit and a humidity control unit being provided in the housing, the temperature control unit and the humidity control unit being arranged in a row on a flow path of an airflow from the air inlet to the air outlet, and the temperature control unit being closer to the air inlet than the humidity control unit, characterized in that: A sensor assembly is provided between the temperature control unit and the humidity control unit. The sensor assembly includes a detection portion, which is arranged at an upper portion of the housing. The distance between the bottom end of the detection part and the top plate of the shell is L1, the height of the temperature adjustment part is L2, and L1 is less than 30% of L2.

2. The humidity control device according to claim 1, characterized in that: The maximum offset of the detection part in the horizontal direction relative to the center line of the air inlet is L3, and L3 is less than 50 mm.

3. The humidity control device according to claim 1, characterized in that: The sensor assembly includes a mounting frame, The detection unit is supported by the housing via the mounting frame. The housing has a first side plate provided with the air inlet, The orthographic projection of the mounting frame on the first side panel does not overlap with the air inlet.

4. The humidity control device according to claim 3, characterized in that: The upper side of the mounting frame is connected to the top plate, and the lower side of the mounting frame is in the flow path. The highest position of the air inlet is not higher than the lowest position of the mounting frame.

5. The humidity control device according to claim 3, characterized in that: The mounting frame has a plate-shaped portion against which the detection portion abuts. The angle formed by the plate-shaped portion and the center line of the air inlet is less than 10 degrees.

6. The humidity control device according to claim 1, characterized in that: The bottom end of the detection portion is lower than the highest position of the air inlet and not lower than the center line of the air inlet.

7. The humidity control device according to claim 1, characterized in that: The detection portion protrudes downward from the highest position of the air inlet by more than 5 mm and less than 10 mm.

8. The humidity control device according to claim 1, characterized in that: The distance between the bottom end of the detection part and the top plate is 40 mm to 60 mm.

9. The humidity control device according to claim 1, characterized in that: The shortest distance between the detection unit and the temperature adjustment unit is L4, the shortest distance between the temperature adjustment unit and the humidity adjustment unit is L5, and L4 is more than one third of L5.

10. The humidity control device according to claim 1, wherein: The temperature adjustment unit includes at least one of a heat exchanger and an electric heater.

11. The humidity control device according to claim 1, characterized in that: The humidity control unit includes at least one of a moisture permeable membrane, a spray humidification unit, and a rotary humidification unit.

12. The humidity control device according to claim 1, characterized in that: The distance between the detection unit and the temperature adjustment unit is greater than or equal to 50 mm.

13. The humidity control device according to claim 1, characterized in that: L1 is at least one tenth of L2.

14. The humidity control device according to claim 1, characterized in that: The detection portion is in a strip shape extending in the up-down direction.

15. A method for controlling a humidity control device, for controlling the humidity control device according to any one of claims 1 to 14, characterized in that: When the detection value of the detection unit is lower than the first target value, the output of the temperature adjustment unit is increased to increase the temperature of the airflow heated by the temperature adjustment unit. When the detection value of the detection unit exceeds a second target value higher than the first target value, the output of the temperature adjustment unit is reduced to reduce the temperature of the airflow heated by the temperature adjustment unit.

16. The control method of the humidity control device according to claim 15, characterized in that: The temperature control unit includes a heat exchanger, and the humidity control device includes an electric valve, the electric valve controls the flow of refrigerant to the heat exchanger, and increases the opening of the electric valve when the detection value of the detection unit is lower than a first target value, and decreases the opening of the electric valve when the detection value of the detection unit exceeds the second target value; or, The temperature adjustment unit includes an electric heater. When the detection value of the detection unit is lower than a first target value, the power-on time of the electric heater is extended. When the detection value of the detection unit exceeds a second target value, the power-on time of the electric heater is shortened.

17. The control method of the humidity control device according to claim 15, characterized in that: The temperature adjustment unit includes a plurality of electric heaters. When the detection value of the detection unit is lower than a first target value, the number of the electric heaters powered on is increased. When the detection value of the detection unit exceeds a second target value, the number of the electric heaters powered on is reduced.

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