JP6590073B2 - Air cooling device and dehumidifying / humidifying device - Google Patents

Description

Cross-reference to related applications

  This application is based on Japanese Patent Application No. 2016-162182 filed on August 22, 2016, the description of which is incorporated herein by reference.

  The present disclosure relates to an air cooling device and a dehumidifying / humidifying device using the same.

  Conventionally, various air cooling apparatuses having a function of cooling air are known. When the air is cooled by the air cooling device, dew condensation may occur in a cooling unit provided in the air cooling device. In general, dew condensation is detected by a dew condensation sensor or by detecting a dew point based on measured values of a temperature sensor and a humidity sensor.

  Patent Document 1 discloses a technique for controlling the dehumidifying / humidifying device and the air conditioner while detecting humidity in the passenger compartment using a humidity sensor and suppressing window fogging.

Japanese Patent Laid-Open No. 2006-60467

  However, if a dew condensation sensor or a humidity sensor is used to detect the dew condensation that occurs in the air cooling device, these sensors are relatively expensive, resulting in high manufacturing costs. In addition, as the physique of various devices including the air cooling device is being reduced in size, it is possible to arrange a dew condensation sensor in a limited space in the device, or to arrange a combination of a humidity sensor and a temperature sensor. Have difficulty.

  An object of the present disclosure is to provide an air cooling device and a dehumidifying / humidifying device capable of detecting dew condensation using a temperature sensor.

  According to one aspect of the present disclosure, the air cooling device includes a cooling unit, a blower, a temperature sensor, and a determination unit. The cooling unit cools the air. The blower generates an air flow in the cooling unit. The temperature sensor detects an air temperature before cooling by the cooling unit and an air temperature after cooling by the cooling unit. The determination unit determines whether or not condensation occurs in the cooling unit based on the air temperature before cooling by the cooling unit detected by the temperature sensor and the air temperature after cooling by the cooling unit.

  According to this, the inventor has found that the dew condensation can be detected by the temperature sensor without using the dew condensation sensor or the humidity sensor. That is, when dew condensation occurs in the cooling unit, the cooling energy by the cooling unit is used for latent heat for condensing water vapor contained in the air, so that the change in sensible heat is small. Therefore, when the flow rate of air flowing through the cooling unit and the cooling capacity by the cooling unit are set as predetermined conditions, the temperature difference between the air temperature before cooling by the cooling unit and the air temperature after cooling by the cooling unit is dew condensation on the cooling unit. The value when condensation occurs in the cooling section is smaller than the value when it does not occur. Therefore, the determination unit can determine whether or not condensation occurs in the cooling unit based on the air temperature detected by the temperature sensor. As a result, the air cooling device can reduce the manufacturing cost as compared with a conventional device using a humidity sensor or a dew condensation sensor.

  According to another aspect, the dehumidifying / humidifying device includes the air cooling device, the heating unit, and the adsorbent described in one aspect. The heating unit heats the air flowing by the blower. The adsorbent is provided between the heating unit and the cooling unit, and collects moisture in the air or desorbs moisture in the air.

  According to this, since the dehumidifying / humidifying device can determine whether or not condensation occurs in the cooling unit based on the air temperature detected by the temperature sensor, the manufacturing cost can be reduced. it can.

  Moreover, this dehumidifying / humidifying device can prevent dripping of water from the outlet by suppressing the occurrence of dew condensation in the cooling section, and can further prevent a decrease in capacity due to submersion of the adsorbent. Therefore, this dehumidifying / humidifying device can be used under various environmental conditions.

It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 1st Embodiment. It is a humid air line figure for demonstrating the method of the dew condensation detection by 1st Embodiment. It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 2nd Embodiment. It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 3rd Embodiment. It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 4th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 5th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the air cooling device concerning 6th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the dehumidification / humidification apparatus concerning 7th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the dehumidification / humidification apparatus concerning 7th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the dehumidification / humidification apparatus concerning 8th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the dehumidification / humidification apparatus concerning 8th Embodiment. It is a schematic diagram which shows the cross-sectional structure of the dehumidification / humidification apparatus concerning 8th Embodiment. It is a wet air diagram for demonstrating the method of the dew condensation detection by 8th Embodiment. It is a wet air diagram for demonstrating the method of the dew condensation detection by 8th Embodiment.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other will be described with the same reference numerals.

(First embodiment)
A first embodiment will be described with reference to the drawings. The air cooling device of the present embodiment is applied to various devices having a function of cooling air. The object to be cooled by the air cooling device is applicable to any field such as air in the vehicle interior, electrical equipment, or living space.

  As shown in FIG. 1, the air cooling device 1 includes a cooling unit 2, a blower 3, a temperature sensor 4, a control device 5, and the like.

  The cooling unit 2 is disposed in the air passage 7 formed in the housing 6 and cools the air flowing through the air passage 7. The housing 6 only needs to form the air passage 7, and is not limited to being configured as a cylindrical member alone, but may be configured as a part of another device or member, for example. Good.

  The cooling unit 2 can employ various cooling means as long as it can cool the air flowing through the air passage 7. Examples of the cooling means include a heat exchanger that exchanges heat between the air flowing through the air passage 7 and a medium lower in temperature than the air, a thermo module having a Peltier element, or a device that uses a heat sink. Various media can be employed as the media used in the heat exchanger. Examples of the medium include refrigerant flowing through a refrigeration cycle used in an air conditioner, air cooled by the air conditioner, outside air or cooling water in winter.

  The heat sink illustrated as the cooling unit 2 is a heat conductive member having a plurality of fins formed of a metal having excellent heat conductivity such as aluminum or copper. Various media can be adopted as a medium in which the heat sink exchanges heat with the air flowing through the air passage 7. As the medium, for example, a refrigerant flowing through a refrigeration cycle used in an air conditioner, air cooled by the air conditioner, outside air or cooling water in winter can be employed.

  The blower 3 is a means for generating an air flow in the cooling unit 2 by rotating the blades. Examples of the blower 3 include a centrifugal fan, an axial fan, and a reflux fan. The blower 3 is not limited to being disposed in the air passage 7 formed in the housing 6, and may be configured as a part of another device, for example. In that case, the blower 3 causes the airflow generated by another device to flow to the cooling unit 2.

  1 indicates the direction of the airflow in the air passage 7 due to the rotation of the blades of the blower 3. In FIG. 1, the blower 3 is arranged on the upstream side of the cooling unit 2. However, the direction of the airflow in the air passage 7 can be reversed from the direction of the arrow A1 in FIG. 1 by rotating the blades of the blower 3 in the reverse direction. In that case, the blower 3 is disposed downstream of the cooling unit 2.

  The temperature sensor 4 is a means for detecting the air temperature before cooling by the cooling unit 2 and detecting the air temperature after cooling by the cooling unit 2. The air temperature detected by the temperature sensor 4 is a dry bulb temperature. As temperature sensor 4, various things, such as a thermocouple, a thermistor, a resistance thermometer, or a radiation thermometer, are employable, for example.

  In the present embodiment, the temperature sensor 4 includes a first temperature sensor 41 and a second temperature sensor 42. The first temperature sensor 41 and the second temperature sensor 42 are respectively disposed on the upstream side and the downstream side of the cooling unit 2 when the airflow flows in a predetermined direction. In FIG. 1, one each of the first temperature sensor 41 and the second temperature sensor 42 is shown, but the number of the first temperature sensors 41 and the second temperature sensors 42 is not limited to this. One or a plurality of the first temperature sensor 41 and the second temperature sensor 42 may be provided.

  When the airflow flows in the direction of the arrow A1 in FIG. 1, the first temperature sensor 41 is on the upstream side of the airflow with respect to the cooling unit 2, and the second temperature sensor 42 is on the downstream side of the airflow with respect to the cooling unit 2. Become. When the airflow flows in the direction of the arrow A1 in FIG. 1 and the cooling unit 2 is operating, the first temperature sensor 41 detects the air temperature before cooling by the cooling unit 2, and the second temperature sensor 42 The air temperature after cooling by the cooling unit 2 is detected.

  In addition, as above-mentioned, the direction of the airflow of the air path 7 turns into the reverse direction by the arrow A1 of FIG. 1 because the blade | wing of the air blower 3 reversely rotates. In this case, the first temperature sensor 41 is on the downstream side of the airflow with respect to the cooling unit 2, and the second temperature sensor 42 is on the upstream side of the airflow with respect to the cooling unit 2. When the airflow flows in the direction opposite to the arrow A1 in FIG. 1 and the cooling unit 2 is operating, the first temperature sensor 41 detects the air temperature after cooling by the cooling unit 2, and the second temperature sensor 42 detects the air temperature before cooling by the cooling unit 2.

  The air temperature detected by the first temperature sensor 41 and the second temperature sensor 42 is input to the control device 5. The control device 5 is composed of a microcomputer including a CPU, a ROM, a RAM and the like and peripheral circuits thereof. The control device 5 has a function as the calculation unit 51. The control device 5 also functions as a control unit that controls the cooling capacity of the cooling unit 2 or the blowing capacity of the blower 3. In addition, the control apparatus 5 is not restricted to what is used only for the air cooling apparatus 1, For example, you may be comprised as a part of control circuit of another apparatus. Moreover, the control apparatus 5 may control the air cooling device 1 by communicating information with another apparatus.

  The control device 5 of the present embodiment functions as a determination unit that determines whether or not condensation occurs in the cooling unit 2 based on the air temperatures detected by the first temperature sensor 41 and the second temperature sensor 42. is there. The control device 5 is not limited to the microcomputer as described above, and can be configured as a simple switch circuit as long as it has a function as the determination unit.

  Next, a method in which the control device 5 of the present embodiment determines whether or not condensation occurs in the cooling unit 2 will be described.

  FIG. 2 is a moist air diagram showing numerical values indicating the physical state of moist air on one diagram.

  Here, the air temperature before being cooled by the cooling unit 2 of the air cooling device 1 will be described as 25 ° C. In the present specification, the air temperature refers to the dry bulb temperature. When the airflow flows in the direction of the arrow A <b> 1 in FIG. 1 described above, the air temperature before being cooled by the cooling unit 2 is detected by the first temperature sensor 41.

  The cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set such that the air temperature after cooling by the cooling unit 2 is reduced by 13 ° C. when no condensation occurs in the cooling unit 2. That is, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so as to reduce the specific enthalpy of air by 13 kJ / kg (DA).

  As shown at point A in FIG. 2, it is assumed that the air temperature detected by the first temperature sensor 41 is 25 ° C. and the relative humidity of the air is 20%. At this time, as indicated by a point B, the air temperature after being cooled by the cooling unit 2 of the air cooling device 1 is 12 ° C. The air temperature after being cooled by the cooling unit 2 is detected by the second temperature sensor 42. In this case, the difference between the air temperature before being cooled by the cooling unit 2 and the air temperature after being cooled by the cooling unit 2 corresponds to the setting of the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3. Value. Therefore, no condensation occurs in the cooling unit 2. In this case, the specific enthalpy of air before being cooled by the cooling unit 2 is 35 kJ / kg (DA), and the specific enthalpy of air after being cooled by the cooling unit 2 is 22 kJ / kg (DA). . Therefore, the specific enthalpy of air is reduced by 13 kJ / kg (DA) before and after being cooled by the cooling unit 2.

  In contrast, as indicated by point C, the air temperature detected by the first temperature sensor 41 is 25 ° C., and the relative humidity of the air is 60%. At this time, as indicated by point E, the air temperature after being cooled by the cooling unit 2 of the air cooling device 1 is 15 ° C. The temperature detected by the second temperature sensor 42 is higher than 12 ° C. detected when the relative humidity of the air is 20%. In this case, the difference between the air temperature before being cooled by the cooling unit 2 and the air temperature after being cooled by the cooling unit 2 corresponds to the setting of the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3. It is smaller than the value. Accordingly, condensation occurs in the cooling unit 2.

  Specifically, when the temperature of the air passing through the cooling unit 2 is lower than 17 ° C. indicated by the point D, water vapor contained in the air is condensed and condensation occurs. At that time, since the cooling energy by the cooling unit 2 is used for latent heat for condensing water vapor contained in the air, the change in sensible heat is small. In this case, the specific enthalpy of air before being cooled by the cooling unit 2 is 56 kJ / kg (DA), and the specific enthalpy of air after being cooled by the cooling unit 2 is 43 kJ / kg (DA). is there. Therefore, the specific enthalpy of air is reduced by 13 kJ / kg (DA) before and after being cooled by the cooling unit 2.

  Note that the dry bulb temperature, relative humidity, specific enthalpy, etc. shown in the above description are only examples for explanation, and the numerical values include a certain range, and the air cooling device 1 Needless to say, the function or performance is not limited.

  In this way, the control device 5 determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the air temperature detected by the second temperature sensor 42. Is possible. Specifically, the control device 5 determines the second temperature sensor 42 based on the air temperature before cooling by the cooling unit 2 detected by the first temperature sensor 41, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3. The estimated temperature of the air after cooling by the cooling unit 2 detected in step S is calculated. Then, when the air temperature detected by the second temperature sensor 42 is higher than the estimated temperature, it is determined that condensation occurs in the cooling unit 2.

  When it is determined that condensation occurs in the cooling unit 2, the control device 5 reduces or stops the cooling capacity of the cooling unit 2. Or the ventilation capability of the air blower 3 is increased or stopped. Thereby, the air cooling device 1 can suppress the occurrence of condensation in the cooling unit 2.

  The air cooling device 1 according to the first embodiment described above can achieve the following functions and effects.

  (1) In the first embodiment, the control device 5 determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42.

  According to this, when the flow rate of air flowing through the cooling unit 2 and the cooling capacity by the cooling unit 2 are set as predetermined conditions, the temperature difference between the air temperatures detected by the first temperature sensor 41 and the second temperature sensor 42 is the cooling unit. The value when condensation occurs in the cooling unit 2 is smaller than the value when condensation does not occur in 2. Therefore, the control device 5 can determine whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42. Therefore, the air cooling device 1 can reduce the manufacturing cost as compared with a conventional device using a humidity sensor or a dew condensation sensor.

  (2) In the first embodiment, the control device 5 determines the temperature difference between the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3. Based on this, it is determined whether or not condensation occurs in the cooling unit 2.

  According to this, when the cooling energy by the cooling unit 2 is used to change the sensible heat without being used for the condensation of water vapor contained in the air, the temperature difference between the air before and after the cooling by the cooling unit 2 is It can be calculated according to the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3. Therefore, the determination unit calculates a value calculated according to the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 and a temperature difference between the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42. By comparison, it can be determined whether or not condensation occurs in the cooling unit 2.

  (3) In the first embodiment, the control device 5 performs cooling based on the air temperature before cooling by the cooling unit 2 detected by the first temperature sensor 41, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3. The estimated temperature of the air after cooling by the unit 2 is calculated. Then, when the air temperature after cooling by the cooling unit 2 detected by the second temperature sensor 42 is higher than the estimated temperature, it is determined that condensation occurs in the cooling unit 2.

  According to this, the control device 5 can accurately determine whether or not condensation has occurred in the cooling unit 2.

  (4) In the first embodiment, the air cooling device 1 includes the first temperature sensor 41 provided on the upstream side of the airflow with respect to the cooling unit 2 when the airflow flows in a predetermined direction, and the airflow with respect to the cooling unit 2. The 2nd temperature sensor 42 provided in the downstream of is provided.

  According to this, the first temperature sensor 41 and the second temperature sensor 42 provided on the upstream side and the downstream side of the air flow with respect to the cooling unit 2, respectively, the air temperature before cooling by the cooling unit 2 and the cooling unit 2 can accurately detect the air temperature after cooling. Note that one or a plurality of the first temperature sensor 41 and the second temperature sensor 42 can be provided.

  (5) In the first embodiment, the control device 5 reduces or stops the cooling capacity of the cooling unit 2 when it is determined that condensation occurs in the cooling unit 2. Or the ventilation capability of the air blower 3 is increased or stopped.

  According to this, it is possible to suppress the occurrence of dew condensation in the cooling unit 2 and to suppress problems such as dripping of water from the cooling unit 2.

(Second to fourth embodiments)
Second to fourth embodiments will be described. 2nd-4th embodiment changes the structure of the cooling unit 2 with respect to 1st Embodiment, and since it is the same as that of 1st Embodiment about others, only about a different part from 1st Embodiment. explain.

  As shown in FIG. 3, in the second embodiment, a thermo module having a Peltier element 21 is applied to the cooling unit 2. The control device 5 can control the cooling capacity of the cooling unit 2 by adjusting the power supplied to the cooling unit 2.

  As shown in FIG. 4, in the third embodiment, an evaporator constituting a refrigeration cycle is applied to the cooling unit 2. In the refrigeration cycle, a compressor 22, a condenser 23, an expansion valve 24 and an evaporator 25 are connected by a pipe 26. The compressor 22 compresses the gas-phase refrigerant sucked from the evaporator 25 side and discharges it to the condenser 23 side. The condenser 23 dissipates heat and condenses the gas-phase refrigerant discharged from the compressor 22. The expansion valve 24 decompresses and expands the liquid-phase refrigerant that has flowed out of the condenser 23. The evaporator 25 evaporates the liquid-phase refrigerant decompressed by the expansion valve 24. The air flowing through the air passage 7 is cooled by the heat of evaporation when the liquid refrigerant evaporates inside the evaporator 25.

  As shown in FIG. 5, in the fourth embodiment, a heat sink 27 is applied to the cooling unit 2. The heat sink 27 is a heat conducting member having a plurality of fins formed of a metal having excellent heat conductivity such as aluminum or copper. A pipe 28 is connected to the heat sink 27, and the cold water pumped up by the pump 291 from the cold water tank 29 is circulated. The air flowing through the air passage 7 is cooled by exchanging heat with the cold water via the heat sink 27.

  The cooling unit 2 may adopt various cooling methods in addition to the cooling methods described in the first to fourth embodiments as long as the cooling unit 2 can cool the air flowing through the air passage 7. Is possible.

(Fifth embodiment)
A fifth embodiment will be described. In the fifth embodiment, the configuration of the temperature sensor 4 is changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment. Therefore, only different parts from the first embodiment will be described.

  As shown in FIG. 6, in the fifth embodiment, the temperature sensor 4 is provided at a position on the downstream side of the airflow with respect to the cooling unit 2 when the airflow flows in the direction of the arrow A1. In FIG. 6, only one temperature sensor 4 is shown at a position downstream of the airflow, but the number of temperature sensors 4 is not limited to this. One or a plurality of temperature sensors 4 may be provided.

  When the airflow flows in the direction of the arrow A1 in FIG. 6 and the cooling unit 2 is operating, the temperature sensor 4 detects the air temperature after cooling by the cooling unit 2. Further, when the airflow flows in the direction of the arrow A1 in FIG. 6 and the cooling unit 2 stops the cooling function, the temperature sensor 4 can detect the air temperature before cooling by the cooling unit 2. is there.

  Further, the direction of the airflow in the air passage 7 is opposite to the direction of the arrow A1 in FIG. 6 by the reverse rotation of the blades of the blower 3. Also in that case, the temperature sensor 4 can detect the air temperature before cooling by the cooling unit 2.

  The air temperature detected by the temperature sensor 4 is input to the control device 5. The control device 5 functions as a determination unit that determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the temperature sensor 4. The control device 5 is not limited to a microcomputer or the like as long as it has a function as the determination unit, and can be configured as a simple switch circuit.

  The control device 5 stops the cooling function of the cooling unit 2 at predetermined time intervals while the cooling unit 2 and the blower 3 of the air cooling device 1 are operating, and during that time, the air temperature before cooling by the cooling unit 2 Is detected by the temperature sensor 4. Thereby, the control device 5 detects the temperature difference between the air temperature before being cooled by the cooling unit 2 detected by the temperature sensor 4 and the air temperature after being cooled, the cooling capacity of the cooling unit 2, and the blower of the blower 3. Based on the capability, it is possible to determine whether or not condensation occurs in the cooling unit 2.

  Specifically, during the operation of the air cooling device 1, the control device 5 detects the air temperature before cooling by the cooling unit 2 detected by the temperature sensor 4 by stopping the cooling function of the cooling unit 2 at predetermined time intervals. To do. Based on the detected air temperature before cooling by the cooling unit 2, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3, the estimated temperature of the air after cooling by the cooling unit 2 is calculated. Subsequently, the control device 5 operates the cooling unit 2 and the blower 3 again, and determines that condensation has occurred in the cooling unit 2 when the air temperature detected by the temperature sensor 4 is higher than the estimated temperature.

  When it is determined that condensation occurs in the cooling unit 2, the control device 5 reduces or stops the cooling capacity of the cooling unit 2. Or the ventilation capability of the air blower 3 is increased or stopped. Thereby, the air cooling device 1 can suppress the occurrence of condensation in the cooling unit 2.

  In the fifth embodiment described above, the temperature sensor 4 is provided at a position on the downstream side of the airflow with respect to the cooling unit 2 when the airflow flows in a predetermined direction. The control device 5 detects the air temperature after cooling by the cooling unit 2 by the temperature sensor 4 in a state where the blower 3 is driven and the cooling unit 2 is operating at a predetermined cooling capacity. The control device 5 detects the air temperature before cooling by the cooling unit 2 by the temperature sensor 4 in a state where the blower 3 is driven and the cooling unit 2 stops the cooling operation.

  According to this, without providing the temperature sensor 4 at the position upstream of the airflow with respect to the cooling unit 2, the temperature sensor 4 provided at the position downstream of the airflow with respect to the cooling unit 2 allows the cooling unit The air temperature before cooling by 2 and the air temperature after cooling by the cooling unit 2 can be detected. Therefore, the air cooling device 1 can be reduced in size and the manufacturing cost can be reduced.

(Sixth embodiment)
A sixth embodiment will be described. In the sixth embodiment, the configuration of the second temperature sensor 42 is changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment. Therefore, only the parts different from the first embodiment will be described. To do.

  As shown in FIG. 7, in the sixth embodiment, the temperature sensor 4 includes a first temperature sensor 41 and a second temperature sensor 42. However, the 1st temperature sensor 41 of 6th Embodiment is provided in the position away from the cooling part 2 instead of the inside of the housing | casing 6, and detects the temperature of the space in which the air cooling device 1 is installed. . The first temperature sensor 41 may be installed in another device 100 or may be used for temperature control of the other device 100. That is, as long as the first temperature sensor 41 can detect the air temperature before cooling by the cooling unit 2, the place where the first temperature sensor 41 is installed is not limited.

  Similar to the first embodiment, the second temperature sensor 42 is provided at a position on the downstream side of the airflow with respect to the cooling unit 2 when the airflow flows in the direction of the arrow A1. When the airflow flows in the direction of the arrow A1 and the cooling unit 2 is operating, the second temperature sensor 42 can detect the air temperature after cooling by the cooling unit 2.

  In FIG. 7, one first temperature sensor 41 and one second temperature sensor 42 are shown, but the number of the first temperature sensors 41 and the second temperature sensors 42 is not limited to this. One or a plurality of the first temperature sensor 41 and the second temperature sensor 42 may be provided.

  In 6th Embodiment described above, the 1st temperature sensor 41 is provided in the position away from the cooling unit 2, and detects the temperature of the space where the air cooling device 1 is installed.

  According to this, the 1st temperature sensor 41 is good also as a temperature sensor used for the other apparatus 100 provided in the position away from the cooling part 2. FIG. In this case, the control device 5 can use the detection value of the temperature sensor as the detection value of the first temperature sensor 41.

(Seventh embodiment)
A seventh embodiment will be described. 7th Embodiment is the dehumidification / humidification apparatus 10 comprised including the air cooling device 1 demonstrated in 1st Embodiment. The object to be dehumidified or humidified by the dehumidifying / humidifying device 10 is applicable to any field such as air in the vehicle interior or living space. Further, the installation location may be any location in the vehicle or the living space.

  In the following description, as an example of the dehumidifying / humidifying device 10, a device that is disposed on the ceiling of a vehicle and that targets air in the passenger compartment for dehumidification or humidification will be described.

  As shown in FIG. 8, the dehumidifying / humidifying device 10 includes a cooling unit 2, a blower 3, an adsorbent 8, a heating unit 9, a temperature sensor 4, a control device 5, and the like. Since the cooling unit 2 and the blower 3 are substantially the same as those described in the first embodiment, description thereof is omitted.

  For example, the adsorbent 8 is provided in a state of being supported by a plurality of plate-like members. The plurality of plate-like members carrying the adsorbent 8 are stacked and arranged at intervals to constitute an adsorbent module 81. The air flowing through the air passage 7 flows through a gap formed between the plurality of plate-like members. By configuring the adsorbent module 81 in this way, the contact area between air and the adsorbent 8 can be increased. The adsorbent module 81 is disposed between the cooling unit 2 and the heating unit 9.

  The adsorbent 8 can employ various substances that have the property of collecting moisture in the air or desorbing moisture in the air. Examples of the adsorbent 8 include a polymer adsorbent or a hygroscopic material such as zeolite which is a polyhedron obtained by drying gelatin soft mud.

  The heating unit 9 can employ various heating methods as long as it can heat the air flowing through the air passage 7. Examples of the heating method include a device including a heating element that generates heat when energized, or a heat exchanger that exchanges heat between the air flowing through the air passage 7 and a medium having a higher temperature than the air. Various heating elements that generate heat when energized can be used. Examples of the heating element include a nichrome wire heater, a PTC (Positive Temperature Coefficient) heater, or an electronic component that generates heat in the vehicle. Various media can be employed as the media used in the heat exchanger. As the medium, for example, hot water, refrigerant, engine cooling water, or the like can be given.

  Similar to the first embodiment, the temperature sensor 4 includes a first temperature sensor 41 and a second temperature sensor 42. The first temperature sensor 41 is provided on the side opposite to the adsorbent 8 with respect to the cooling unit 2. The second temperature sensor 42 is provided between the cooling unit 2 and the adsorbent 8. That is, the first temperature sensor 41 and the second temperature sensor 42 are respectively disposed on the upstream side and the downstream side of the cooling unit 2 when the airflow flows in a predetermined direction. In FIG. 8, one each of the first temperature sensor 41 and the second temperature sensor 42 is shown, but the number of the first temperature sensors 41 and the second temperature sensors 42 is not limited to this. One or a plurality of the first temperature sensor 41 and the second temperature sensor 42 may be provided.

  The housing 6 only needs to form the air passage 7, and is not limited to being configured as a cylindrical member alone, but may be configured as a part of another member, for example. The housing 6 has a first opening 61 on one side of the air passage 7 and a second opening 62 on the other side of the air passage 7. The first temperature sensor 41, the cooling unit 2, the second temperature sensor 42, the adsorbent 8, the heating unit 9, and the blower 3 described above are arranged in this order in the direction from the first opening 61 side to the second opening 62 side. Is arranged. In addition, the arrangement | positioning place of the air blower 3 is not restricted to this, What is necessary is just a place which can generate an air current in the air path 7. FIG.

  Next, the operation of the dehumidifying / humidifying device 10 will be described.

  When the dehumidifying / humidifying device 10 executes the moisture absorption mode, the control device 5 rotationally drives the blades of the blower 3 and causes an airflow to flow in the air passage 7 in the direction indicated by the arrow A1 in FIG. At this time, the air introduced from the first opening 61 is cooled by the cooling unit 2. Thereby, the air immediately after passing through the cooling unit 2 has a higher relative humidity than the air before passing through the cooling unit 2. When air having a high relative humidity comes into contact with the adsorbent 8, moisture contained in the air is efficiently adsorbed by the adsorbent 8. Thereby, the air after passing through the adsorbent 8 has a lower relative humidity than the air immediately after passing through the cooling unit 2. Next, the air that has passed through the adsorbent 8 is heated by the heating unit 9 to be dehumidified air and blown out from the second opening 62.

  When the dehumidifying / humidifying device 10 executes the desorption mode, the control device 5 drives the blades of the blower 3 to rotate in reverse and causes an air flow to flow in the air passage 7 in the direction indicated by the arrow A2 in FIG. At this time, the air introduced from the second opening 62 is heated by the heating unit 9. Thereby, the air after passing through the heating unit 9 has a lower relative humidity than the air before passing through the heating unit 9. When the air having a low relative humidity comes into contact with the adsorbent 8, the moisture adsorbed on the adsorbent 8 is efficiently desorbed into the air. Thereby, the air after passing through the adsorbent 8 has a higher relative humidity than the air immediately after passing through the heating unit 9. Next, the air that has passed through the adsorbent 8 is cooled by the cooling unit 2, becomes humidified air, and is blown out from the first opening 61.

  When the dehumidifying / humidifying device 10 executes the moisture absorption mode, the first temperature sensor 41 detects the air temperature before cooling by the cooling unit 2, and the second temperature sensor 42 detects the air temperature after cooling by the cooling unit 2. To do. On the other hand, when the dehumidifying / humidifying device 10 executes the desorption mode, the first temperature sensor 41 detects the air temperature after cooling by the cooling unit 2, and the second temperature sensor 42 is before cooling by the cooling unit 2. Detect air temperature.

  The air temperature detected by the first temperature sensor 41 and the second temperature sensor 42 is input to the control device 5. The control device 5 functions as a determination unit that determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42. The control device 5 is not limited to a microcomputer or the like as long as it has a function as the determination unit, and can be configured as a simple switch circuit.

  In the moisture absorption mode and the desorption mode, the method for the controller 5 to determine whether or not condensation occurs in the cooling unit 2 is the same as the method described in the first embodiment. That is, the control device 5 can determine whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42. Specifically, the controller 5 detects the air temperature before cooling by the cooling unit 2 detected by one of the first temperature sensor 41 or the second temperature sensor 42, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3. Based on the above, the estimated temperature of the air after cooling by the cooling unit 2 is calculated. And when the air temperature after cooling by the cooling part 2 actually detected by the other of the 1st temperature sensor 41 or the 2nd temperature sensor 42 is higher than estimated temperature, it determines with the condensation having generate | occur | produced in the cooling part 2. To do.

  When it is determined that condensation occurs in the cooling unit 2, the control device 5 reduces or stops the cooling capacity of the cooling unit 2. Or the ventilation capability of the air blower 3 is increased or stopped. Thereby, it is possible to suppress the occurrence of condensation in the cooling unit 2.

  The dehumidifying / humidifying device 10 of the seventh embodiment described above can determine whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the temperature sensors 41 and 42. Therefore, the manufacturing cost can be reduced.

  Further, the dehumidifying / humidifying device 10 prevents the condensation of the cooling unit 2 from occurring, thereby preventing dripping of water from the first opening 61 or the second opening 62, and further, the ability of the adsorbent 8 due to submersion. It is possible to prevent the decrease. Therefore, the dehumidifying / humidifying device 10 can be used under various environmental conditions.

  In the seventh embodiment, the control device 5 determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the first temperature sensor 41 and the second temperature sensor 42.

  According to this, the control device 5 can accurately detect the air temperature before cooling by the cooling unit 2 and the air temperature after cooling by the cooling unit 2 by the first temperature sensor 41 and the second temperature sensor 42. it can.

(Eighth embodiment)
In the eighth embodiment, the configuration of the temperature sensor 4 is changed with respect to the seventh embodiment, and the other parts are the same as those in the seventh embodiment. Therefore, only the parts different from the seventh embodiment will be described.

  As shown in FIG. 10, in the eighth embodiment, the temperature sensor 4 is provided between the cooling unit 2 and the adsorbent 8. In FIG. 10, only one temperature sensor 4 is shown between the cooling unit 2 and the adsorbent 8, but the number of temperature sensors 4 is not limited to this. One or a plurality of temperature sensors 4 may be provided.

  The method for determining whether or not condensation occurs in the cooling unit 2 in the moisture absorption mode is the same as the method described in the fifth embodiment.

  When the dehumidifying / humidifying device 10 executes the moisture absorption mode, the control device 5 rotationally drives the blades of the blower 3 and causes an air flow to flow in the air passage 7 in the direction indicated by the arrow A1 in FIG. When the airflow flows from the first opening 61 toward the second opening 62 and the cooling unit 2 is operating, the temperature sensor 4 detects the air temperature after cooling by the cooling unit 2.

  As shown in FIG. 11, the control device 5 stops the cooling function of the cooling unit 2 at predetermined time intervals while rotating the blades of the blower 3 while the moisture absorption mode is being executed. At that time, the temperature sensor 4 can detect the air temperature before cooling by the cooling unit 2.

  The control device 5 determines whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the temperature sensor 4. Specifically, the control device 5 detects the air temperature before cooling by the cooling unit 2 detected in a state where the cooling function of the cooling unit 2 is stopped at predetermined time intervals, the cooling capacity of the cooling unit 2, and the blowing capacity of the blower 3. Based on the above, the estimated temperature of the air after cooling by the cooling unit 2 is calculated. And when the air temperature detected in the state which operated the cooling unit 2 and the air blower 3 is higher than estimated temperature, it determines with dew condensation having generate | occur | produced in the cooling unit 2. FIG.

  Next, a method for determining whether or not condensation occurs in the cooling unit 2 in the desorption mode will be described.

  When the dehumidifying / humidifying device 10 executes the desorption mode, the control device 5 drives the blades of the blower 3 to rotate in the reverse direction, and causes an airflow to flow in the air passage 7 in the direction indicated by the arrow A2 in FIG. Airflow flows from the second opening 62 toward the first opening 61, and the heating unit 9, the adsorbent 8, and the cooling unit 2 are operated, so that the humidified air is blown out from the first opening 61. The At this time, the temperature sensor 4 detects the air temperature at which the relative humidity is increased after passing through the adsorbent 8 after being heated by the heating unit 9.

  When the control device 5 determines whether or not condensation occurs in the cooling unit 2 in the desorption mode, the control device 5 uses the air temperature detected by the temperature sensor 4 in the moisture absorption mode.

  The state when the condensation is not generated in the cooling unit 2 will be described with reference to the wet air diagram of FIG. Note that the air temperature, relative humidity, specific enthalpy, and the like shown in the following description are merely examples for explanation, and the numerical values include a certain range, and the function of the air cooling device 1 or It does not limit performance.

  The point F shown in FIG. 13 is the air before cooling by the cooling unit 2 detected by stopping the cooling function of the cooling unit 2 while rotating the blades of the blower 3 while the moisture absorption mode is being executed. Temperature. F point is 25 degreeC. Point G is the air temperature after cooling by the cooling unit 2 detected by rotating the blades of the blower 3 and operating the cooling unit 2 when the moisture absorption mode is being executed. The point G is 14 ° C. Therefore, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so that the air temperature after cooling by the cooling unit 2 is reduced by 11 ° C. when no condensation occurs in the cooling unit 2. . That is, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so as to reduce the specific enthalpy of air by 11 kJ / kg (DA).

  Point H is the air temperature immediately after the air flowing in from the second opening 62 passes through the heater when the dehumidifying / humidifying device 10 executes the desorption mode. The H point is 40 ° C. Therefore, the heating capability of the heating unit 9 and the blowing capability of the blower 3 are set such that the air temperature immediately after being heated by the heating unit 9 is increased by 15 ° C. That is, the heating capacity of the heating unit 9 and the blowing capacity of the blower 3 are set to increase the specific enthalpy of air by 15 kJ / kg (DA).

  Point I is the air temperature immediately after the air that has passed through the heater has passed through the adsorbent 8. This temperature is detected by the temperature sensor 4. It is assumed that the temperature sensor 4 detects the temperature at point I as 27 ° C. Note that the specific enthalpy of air is constant between the H point and the I point. In this case, assuming that the relative humidity at point F is 20%, it can be estimated that the relative humidity at point I is 40%. As described above, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so that the air temperature after being cooled by the cooling unit 2 is reduced by 11 ° C. when no condensation occurs in the cooling unit 2. Has been. Therefore, it can be estimated that the air after being cooled by the cooling unit 2 has a temperature of 16 ° C. and a relative humidity of 75% as indicated by point J. Therefore, in this case, the control device 5 determines that no condensation occurs in the cooling unit 2.

  Next, the state when condensation occurs in the cooling unit 2 will be described using the wet air diagram of FIG.

  The point K shown in FIG. 14 indicates air before cooling by the cooling unit 2 detected by stopping the cooling function of the cooling unit 2 while rotating the blades of the blower 3 while the moisture absorption mode is being executed. Temperature. The K point is 25 ° C. Point L is the air temperature after cooling by the cooling unit 2 detected by rotating the blades of the blower 3 and operating the cooling unit 2 when the moisture absorption mode is being executed. L point is 14 degreeC. Therefore, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so that the air temperature after cooling by the cooling unit 2 is reduced by 11 ° C. when no condensation occurs in the cooling unit 2. . That is, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so as to reduce the specific enthalpy of air by 11 kJ / kg (DA).

  Point M is the air temperature immediately after the air flowing in from the second opening 62 passes through the heater when the dehumidifying / humidifying device 10 executes the desorption mode. M point is 40 degreeC. Therefore, the heating capability of the heating unit 9 and the blowing capability of the blower 3 are set such that the air temperature immediately after being heated by the heating unit 9 is increased by 15 ° C. That is, the heating capacity of the heating unit 9 and the blowing capacity of the blower 3 are set to increase the specific enthalpy of air by 15 kJ / kg (DA).

  N point is the air temperature immediately after the air which passed the heater passed the adsorbent 8 after that. This temperature is detected by the temperature sensor 4. It is assumed that the temperature sensor 4 detects the temperature at point N as 25 ° C. Note that the specific enthalpy of air is constant between the M point and the N point. The detected temperature 25 ° C. at point N is lower than the temperature 27 ° C. at point I in FIG. 13 described above. In this case, assuming that the relative humidity at point K is 30%, it can be estimated that the relative humidity at point N is 60%. As described above, the cooling capacity of the cooling unit 2 and the blowing capacity of the blower 3 are set so as to reduce the specific enthalpy of air by 11 kJ / kg (DA). Therefore, the water vapor contained in the air cooled by the cooling unit 2 condenses between the O point and the P point. Thereby, the control apparatus 5 can determine that dew condensation occurs in the cooling unit 2.

  When it is determined that condensation occurs in the cooling unit 2, the control device 5 reduces or stops the cooling capacity of the cooling unit 2. Or the ventilation capability of the air blower 3 is increased or stopped. Thereby, the air cooling device 1 can suppress the occurrence of condensation in the cooling unit 2.

  In the eighth embodiment described above, it is determined whether or not condensation occurs in the cooling unit 2 based on the air temperature detected by the temperature sensor 4 provided between the cooling unit 2 and the adsorbent 8.

  According to this, the dehumidifying / humidifying device 10 uses the temperature sensor 4 provided between the cooling unit 2 and the adsorbent 8 to calculate the air temperature before cooling by the cooling unit 2 and the air temperature after cooling by the cooling unit 2. It is possible to detect. Therefore, the dehumidifying / humidifying device 10 can be reduced in size, and the manufacturing cost can be reduced.

  Further, the dehumidifying / humidifying device 10 prevents the condensation of the cooling unit 2 from occurring, thereby preventing dripping of water from the first opening 61 or the second opening 62, and further, the ability of the adsorbent 8 due to submersion. It is possible to prevent the decrease. Therefore, the dehumidifying / humidifying device 10 can be used under various environmental conditions.

(Other embodiments)
The present disclosure is not limited to the above-described embodiment, and can be modified as appropriate. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Yes. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the component, etc., the shape, unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to the positional relationship or the like.

  For example, an air cooling device can be used for various things, if it has the function to cool air, such as an air conditioner, a personal computer, a power supply box, a distribution board, or a cold wind fan.

(Summary)
According to the 1st viewpoint shown by one part or all part of said each embodiment, an air cooling device is provided with a cooling part, a fan, a temperature sensor, and a determination part. The cooling unit cools the air. The blower generates an air flow in the cooling unit. The temperature sensor detects an air temperature before cooling by the cooling unit and an air temperature after cooling by the cooling unit. The determination unit determines whether or not condensation occurs in the cooling unit based on the air temperature before cooling by the cooling unit detected by the temperature sensor and the air temperature after cooling by the cooling unit.

  According to the second aspect, the determination unit is based on the temperature difference between the air temperature before cooling by the cooling unit and the air temperature after cooling by the cooling unit, the cooling capacity of the cooling unit, and the blowing capacity of the blower. It is determined whether or not condensation occurs.

  According to this, when the cooling energy by the cooling unit is used for the change of sensible heat without being used for condensation of water vapor contained in the air, the temperature difference between the air before and after cooling by the cooling unit is It can be calculated according to the cooling capacity of the part and the blowing capacity of the blower. Therefore, the determination unit compares the value calculated according to the cooling capacity of the cooling unit and the blowing capacity of the blower with the temperature difference between the air temperature after cooling by the cooling unit detected by the temperature sensor, and the cooling unit It can be determined whether or not dew condensation occurs.

  According to the third aspect, the determination unit estimates air after cooling by the cooling unit based on the air temperature before cooling by the cooling unit detected by the temperature sensor, the cooling capacity of the cooling unit, and the blowing capacity of the blower. Calculate the temperature. Then, the determination unit determines that condensation has occurred in the cooling unit when the air temperature after cooling by the cooling unit detected by the temperature sensor is higher than the estimated temperature.

  According to this, the determination unit can accurately determine whether or not condensation has occurred in the cooling unit.

  According to a fourth aspect, the temperature sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is provided at a position on the upstream side of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction, and detects an air temperature before cooling by the cooling unit. The second temperature sensor is provided at a position downstream of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction, and detects the air temperature after cooling by the cooling unit.

  According to this, the first temperature sensor and the second temperature sensor provided on the upstream side and the downstream side, respectively, of the airflow with respect to the cooling unit, the air temperature before cooling by the cooling unit and after cooling by the cooling unit The air temperature can be accurately detected. The first temperature sensor and the second temperature sensor can both be one or more.

  According to the 5th viewpoint, a 1st temperature sensor is provided in the position away from the cooling unit, and detects the temperature of the space in which an air cooling device is installed.

  According to this, a 1st temperature sensor is good also as a temperature sensor used for the other apparatus provided in the position away from the cooling part. In this case, the determination unit can use the detection value of the temperature sensor as the detection value of the first temperature sensor.

  According to the sixth aspect, the temperature sensor is provided at a position on the downstream side of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction.

  The determination unit detects the air temperature after cooling by the cooling unit with the temperature sensor in a state where the blower is driven and the cooling unit is operating at a predetermined cooling capacity. The determination unit detects the air temperature before cooling by the cooling unit with the temperature sensor in a state where the blower is driven and the cooling unit stops the cooling operation.

  According to this, the cooling by the cooling unit is performed by the temperature sensor provided at the position downstream of the air flow with respect to the cooling unit without arranging the temperature sensor at the position upstream of the air flow with respect to the cooling unit. It is possible to detect the previous air temperature and the air temperature after cooling by the cooling unit.

  In this case as well, one or more temperature sensors can be provided at a position downstream of the airflow with respect to the cooling unit.

  According to the 7th viewpoint, when it determines with dew condensation having generate | occur | produced in a cooling unit, the control part which reduces or stops the cooling capability of a cooling unit, or increases or stops the ventilation capability of an air blower is provided.

  According to this, it is possible to suppress the occurrence of dew condensation in the cooling unit, and it is possible to suppress problems such as dripping water from the cooling unit.

  According to the eighth aspect, the dehumidifying / humidifying device includes an air cooling device, a heating unit, and an adsorbent. The heating unit heats the air flowing by the blower. The adsorbent is provided between the heating unit and the cooling unit, and collects moisture in the air or desorbs moisture in the air.

  According to this, since the dehumidifying / humidifying device can determine whether or not condensation occurs in the cooling unit based on the air temperature detected by the temperature sensor, the manufacturing cost can be reduced. it can.

  Moreover, this dehumidifying / humidifying device can prevent dripping of water from the outlet by suppressing the occurrence of dew condensation in the cooling section, and can further prevent a decrease in capacity due to submersion of the adsorbent. Therefore, it can be used under various environmental conditions.

  According to the ninth aspect, the temperature sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is provided on the opposite side of the adsorbent with respect to the cooling unit. The second temperature sensor is provided between the cooling unit and the adsorbent.

  According to this, the air temperature before cooling by the cooling unit and the air temperature after cooling by the cooling unit can be accurately detected by the first temperature sensor and the second temperature sensor. The first temperature sensor and the second temperature sensor can both be one or more.

  According to the tenth aspect, the temperature sensor is provided between the cooling unit and the adsorbent.

  The determination unit detects the air temperature after cooling by the cooling unit with the temperature sensor in a state where the blower is driven and the cooling unit is operating at a predetermined cooling capacity. The determination unit detects the air temperature before cooling by the cooling unit with the temperature sensor in a state where the blower is driven and the cooling unit stops the cooling operation.

  According to this, it is possible to detect the air temperature before cooling by the cooling unit and the air temperature after cooling by the cooling unit by the temperature sensor provided between the cooling unit and the adsorbent. In this case as well, one or more temperature sensors can be provided at a position downstream of the airflow with respect to the cooling unit.

Claims (8)

A cooling section (2) for cooling the air;
A blower (3) for generating an airflow in the cooling section;
A temperature sensor (4, 41, 42) for detecting an air temperature before cooling by the cooling unit and an air temperature after cooling by the cooling unit;
Based on the air temperature before cooling by the cooling unit detected by the temperature sensor, the cooling capacity of the cooling unit, and the blowing capacity of the blower, an estimated temperature of air after cooling by the cooling unit is calculated, and the temperature An air cooling device comprising: a determination unit (5) that determines that condensation occurs in the cooling unit when an air temperature after cooling by the cooling unit detected by a sensor is higher than an estimated temperature . The temperature sensor is
A first temperature sensor (41) that is provided at a position on the upstream side of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction, and detects an air temperature before cooling by the cooling unit;
A second temperature sensor (42) provided at a position on the downstream side of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction and detecting an air temperature after cooling by the cooling unit. 2. The air cooling device according to 1. The air cooling device according to claim 2 , wherein the first temperature sensor is provided at a position away from the cooling unit and detects a temperature of a space in which the air cooling device is installed. The temperature sensor (4) is provided at a position on the downstream side of the airflow with respect to the cooling unit when the airflow flows in a predetermined direction.
The determination unit
In the state where the blower is driven and the cooling unit is operating at a predetermined cooling capacity, the temperature sensor detects the air temperature after cooling by the cooling unit,
The air cooling device according to claim 1, wherein the temperature sensor detects an air temperature before cooling by the cooling unit in a state where the blower is driven and the cooling unit stops a cooling operation. If condensation forms on the cooling unit determines to occur, in any one of the four claims 1 comprising the cooling capacity of the cooling unit or the control unit to reduce or stop the blowing capacity of the blower (5) The air cooling apparatus as described. The air cooling device (1) according to claim 1 ,
A heating section (9) for heating the air flowing by the blower;
A dehumidifying / humidifying device provided between the heating unit and the cooling unit, and comprising an adsorbent (8) that collects moisture in the air or desorbs moisture in the air. The temperature sensor is
A first temperature sensor provided on the opposite side of the adsorbent with respect to the cooling unit;
The dehumidifying / humidifying device according to claim 6 , further comprising: a second temperature sensor provided between the cooling unit and the adsorbent. The temperature sensor is provided between the cooling unit and the adsorbent,
The determination unit
In the state where the blower is driven and the cooling unit is operating at a predetermined cooling capacity, the temperature sensor detects the air temperature after cooling by the cooling unit,
The dehumidifying / humidifying device according to claim 6 , wherein the air temperature before cooling by the cooling unit is detected by the temperature sensor in a state where the blower is driven and the cooling unit stops a cooling operation.

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