JP2019090546A - Air blowing device, air conditioning device, and ventilation system - Google Patents

Abstract

To effectively adjust a carbon dioxide concentration in a room.SOLUTION: An air conditioning device 100 comprises a carbon dioxide absorption/desorption part 11, a heating/cooling part 12 for regenerating the carbon dioxide absorption/desorption part 11, a fan 10 for generating air flow to be passed through the carbon dioxide absorption/desorption part 11, control means, and a carbon dioxide detection sensor 13 for detecting a concentration of carbon dioxide in a room. The control means causes the fan 10 to generate the air flow if the concentration detected by the carbon dioxide detection sensor 13 is higher than a standard, and causes the heating/cooling part 12 to regenerate the carbon dioxide absorption/desorption part 11 if the concentration is lower than the standard.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a blower, an air conditioner including the blower, and a ventilation system including the blower.

  The air conditioner is described in patent document 1 as an example of what was provided with the air blower which sends air. The air conditioner described in Patent Document 1 includes an electrical dust collector for the purpose of improving the quality of indoor air.

JP 10-78235 A

  Although the air conditioner described in Patent Document 1 includes the electric dust collector, the concentration of carbon dioxide in the room can not be changed. For this reason, for example, there is a problem that the comfort of the room is reduced by the increase of the concentration of carbon dioxide in the room.

  The present invention has been made to solve the problems as described above. An object of the present invention is to provide a blower, an air conditioner, and a ventilation system capable of effectively adjusting the concentration of carbon dioxide in a room.

  A blower according to the present invention comprises carbon dioxide absorbing means capable of absorbing carbon dioxide in the air, regenerating means for causing carbon dioxide absorbing means to release carbon dioxide and regenerating the carbon dioxide absorbing means, and carbon dioxide absorbing means Air flow means for generating an air flow passing through the control means, control means for controlling the regeneration means and the air flow means, detection means for detecting at least one of the concentration of carbon dioxide in the room and factors affecting the concentration, detection means Determining means for determining whether the detection result satisfies the first condition and whether the detection result of the detection means satisfies the second condition. When it is determined by the determination means that the detection result of the detection means satisfies the first condition, the control means causes the blower to generate an air flow, and the determination means determines that the detection result of the detection means satisfies the second condition. Then, the regenerating means regenerates the carbon dioxide absorbing means.

  An air conditioning apparatus according to the present invention includes the above-described air blower, a housing in which an air passage is formed, and a heat exchanger disposed in the air passage. The carbon dioxide absorbing means is disposed in the above-mentioned air passage at a position upstream of the front heat exchanger.

  A ventilation system according to the present invention includes the above-described air blower, a ventilation device for ventilating between indoor and outdoor, and a ventilation control unit for controlling the ventilation device. The ventilation control means causes the ventilator to ventilate in conjunction with the regeneration means regenerating the carbon dioxide absorbing means.

  In the ventilation system according to the present invention, the above-mentioned air blower further comprising a saturation detecting means for detecting that the carbon dioxide absorbing means is saturated, a ventilating device for performing ventilation between indoor and outdoor, and ventilation And Ventilation control means for controlling the device. The ventilation control means causes the ventilation device to ventilate in conjunction with the saturation detection means detecting that the carbon dioxide absorbing means is saturated.

  With the air blower, the air conditioner, and the ventilation system according to the present invention, it is possible to more effectively adjust the concentration of carbon dioxide in the room.

FIG. 1 is a view showing an appearance of an air conditioning apparatus provided with a blower of a first embodiment. FIG. 1 is a longitudinal cross-sectional view schematically showing an internal configuration of an air conditioning apparatus according to Embodiment 1. FIG. 2 is a block diagram showing a configuration of a control system of the air conditioning apparatus of Embodiment 1. FIG. 2 is a diagram showing an example of the configuration of a processing circuit that realizes the function of the control device of the first embodiment. 5 is a flowchart showing a first operation example of the air conditioning apparatus of Embodiment 1. 5 is a flowchart showing a second operation example of the air conditioning apparatus of Embodiment 1. FIG. 9 schematically shows a modification of the first embodiment. FIG. 7 is a block diagram showing a ventilation system of a second embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. The same reference numerals in the drawings indicate the same or corresponding parts. In the present disclosure, redundant descriptions will be simplified or omitted as appropriate. Further, the configurations of the air blower, the air conditioner, and the ventilation system according to the present disclosure may include any combination of the configurations described in the following embodiments.

Embodiment 1
FIG. 1 is a view showing the appearance of an air conditioning apparatus 100 provided with the air blower of the first embodiment. FIG. 2 is a longitudinal cross-sectional view schematically showing an internal configuration of the air conditioning apparatus 100 of the first embodiment. The air conditioning apparatus 100 is an example of an apparatus provided with a blower used indoors. In addition, the air conditioning apparatus 100 of this Embodiment is an example provided with the air blower which is a means for solving the subject in this indication. The blower may be provided, for example, in a fan, a dehumidifier, a humidifier or an air purifier.

  As shown in FIG. 1, the air conditioning apparatus 100 includes a housing 1. The housing 1 is formed in a horizontally long substantially rectangular parallelepiped shape. A suction port 2 is formed in the upper surface portion of the housing 1. The suction port 2 is an opening for taking in air from the outside of the housing 1 to the inside of the housing 1. An air outlet 3 is formed at the lower front of the housing 1. The blower outlet 3 is an opening for blowing air from the inside of the housing 1 to the outside of the housing 1. In addition, a front upper portion of the housing 1 is covered by a panel 4.

  The air conditioning apparatus 100 also includes a vertical wind direction plate 5 and a horizontal wind direction plate 6. The vertical wind direction plate 5 and the horizontal wind direction plate 6 are provided in the vicinity of the air outlet 3. The up and down wind direction plate 5 is a member for adjusting the wind direction of the air blown out from the blowout port 3 up and down. The left and right wind direction plate 6 is a member for adjusting the wind direction of the air blown out from the blowout port 3 to the left and right.

  The vertical wind direction plate 5 and the horizontal wind direction plate 6 are each attached to the housing 1 via a member such as a support arm (not shown). Each support arm is provided rotatably with respect to the housing 1. The rotation of each support arm relative to the housing 1 changes the orientation of the vertical wind direction plate 5 and the horizontal wind direction plate 6. By changing the directions of the vertical wind direction plate 5 and the horizontal wind direction plate 6, the wind direction of the air blown out from the air outlet 3 is adjusted.

  An air passage 7 communicating with the air outlet 2 and the air outlet 3 is formed inside the housing 1. In the air passage 7, the suction port 2 side is the upstream side. Further, in the air passage 7, the blowout port 3 is on the downstream side. In the present embodiment, in the air passage 7, the filter 8, the heat exchanger 9 and the fan 10 are provided from upstream to downstream.

  The filter 8 is for removing dust, dirt, dust and the like from the air taken into the inside of the housing 1 from the suction port 2. The filter 8 is formed in, for example, a mesh shape or a honeycomb shape. Moreover, the filter 8 may be formed of a non-woven fabric, or may be formed of a material having excellent thermal conductivity such as aluminum or copper.

  The heat exchanger 9 heats or cools the air by heat exchange between the air flowing through the air passage 7 and the heat medium. Whether the air flowing through the air passage 7 is heated or cooled depends on whether the operation performed by the air conditioning apparatus 100 is a heating operation or a cooling operation. When the air conditioning apparatus 100 performs the heating operation, the heat exchanger 9 heats the air flowing through the air passage 7. When the air conditioning apparatus 100 performs the cooling operation, the heat exchanger 9 cools the air flowing through the air passage 7.

  The fan 10 is for generating an air flow from the suction port 2 to the blowout port 3. When the fan 10 operates, air is drawn into the air passage 7 from the suction port 2. In addition, when the fan 10 operates, an air flow from the suction port 2 to the blowout port 3 is generated in the air passage 7. The air taken into the air passage 7 by the operation of the fan 10 passes through the filter 8 and the heat exchanger 9 and blows out from the air outlet 3.

  The air conditioning apparatus 100 of the present embodiment further includes a carbon dioxide absorbing and discharging unit 11 and a heating and cooling unit 12. The carbon dioxide absorbing and releasing unit 11 absorbs carbon dioxide in the air. The carbon dioxide absorbing and releasing unit 11 of the present embodiment is an example of a carbon dioxide absorbing unit capable of absorbing carbon dioxide in the air. In the present disclosure, “adsorption” and “absorption” are collectively referred to simply as “absorption”. Similarly, in the present disclosure, "desorption" and "release" are collectively referred to as "release".

  The heating and cooling unit 12 heats or cools the carbon dioxide absorbing and discharging unit 11. In the present embodiment, the heating and cooling unit 12 regenerates the carbon dioxide absorbing and releasing unit 11 by heating the carbon dioxide absorbing and releasing unit 11. The heating and cooling unit 12 is an example of a regeneration unit that regenerates the carbon dioxide absorbing unit.

  At least a portion of the carbon dioxide absorbing and releasing unit 11 is formed of a material having the ability to absorb and release carbon dioxide. The ability of the carbon dioxide absorbing and releasing unit 11 to absorb carbon dioxide is regenerated by releasing the carbon dioxide absorbed by the carbon dioxide absorbing and releasing unit 11. The carbon dioxide absorbing and releasing unit 11 is formed of a material having the above-described renewable characteristics.

  As one example, the carbon dioxide absorbing and releasing unit 11 is formed of polymer compound particles having an amino group. In other words, the carbon dioxide absorbing and releasing unit 11 is formed of, for example, an amine-based polymer compound. The high molecular compound particles having an amino group are supported by the carrier to form the carbon dioxide absorbing and releasing unit 11.

  The polymer compound particle having an amino group is a substance that causes a phase transition. The polymer compound particles having an amino group absorb or release carbon dioxide with the transition temperature as a threshold. The degree of swelling and internal structure of polymer compound particles having an amino group, the acid dissociation constant of the amino group, and the like change with a small temperature change. The absorption capacity to carbon dioxide of polymer compound particles having an amino group changes with a small temperature change.

  When a polymer compound particle having an amino group is brought into contact with a gas under a specific temperature environment, the anion derived from the gas and the amino group of the polymer compound particle form a salt. Thus, the gas is reversibly absorbed in the polymer compound particles. When the polymer compound particles in this state are heated, gas is easily released from the polymer compound particles. When the gas is released from the polymer compound particles, the amino group is regenerated.

  The cycle of absorption and release of gas is repeated by the mechanism described above, by repeatedly performing cooling and heating to a specific temperature to the polymer compound particles having an amino group. In the present embodiment, the cycle of absorption and release of carbon dioxide to the carbon dioxide absorbing and releasing unit 11 is repeated by the cooling and heating for the carbon dioxide absorbing and releasing unit 11 being repeated by the heating and cooling unit 12.

  The heating and cooling unit 12 includes, for example, a member that can perform both heating and cooling, such as a Peltier device. The heating and cooling unit 12 including the Peltier element is, for example, in contact with the carbon dioxide absorbing and discharging unit 11 on one side. The state of the one side surface of the heating and cooling unit 12 including the Peltier element is switched depending on whether the carbon dioxide absorption / release unit 11 is heated or cooled. As an example, the heating and cooling unit 12 is configured to be able to instantaneously heat or cool the carbon dioxide absorbing and discharging unit 11 to the transition temperature.

  The carbon dioxide absorbing and releasing unit 11 and the heating and cooling unit 12 configured as described above are provided in the air passage 7. The carbon dioxide absorbing and discharging unit 11 and the heating and cooling unit 12 are disposed upstream or downstream of the fan 10. The carbon dioxide absorption and release unit 11 and the heating and cooling unit 12 in the present embodiment are, for example, disposed between the filter 8 and the heat exchanger 9 as shown in FIG. That is, in the present embodiment, the carbon dioxide absorption and release unit 11 and the heating and cooling unit 12 are disposed upstream of the heat exchanger 9 and the fan 10.

  As described above, the fan 10 generates an air flow in the air passage 7. The air taken into the air passage 7 by the operation of the fan 10 passes through the carbon dioxide absorbing and discharging unit 11. The fan 10 in the present embodiment is an example of a blowing unit that generates an air flow passing through the carbon dioxide absorbing unit.

  When the temperature of the carbon dioxide absorbing and releasing unit 11 is higher than the transition temperature, carbon dioxide is released into the air flowing in the air passage 7. Further, when the temperature of the carbon dioxide absorbing and releasing unit 11 is lower than the transition temperature, carbon dioxide in the air flowing in the air passage 7 is absorbed. Thus, the air conditioning apparatus 100 of the present embodiment adjusts the carbon dioxide concentration in the air by the carbon dioxide absorption and release unit 11. The air conditioner 100 blows out the air whose carbon dioxide concentration has been adjusted by the carbon dioxide absorbing and discharging unit 11 from the blowout port 3.

  In addition, the material which comprises the carbon-dioxide absorption part 11 which is an example of a carbon-dioxide absorption means is not restricted to the high molecular compound particle which has an amino group shown in this Embodiment. The carbon dioxide absorbing and releasing unit 11 as an example of the carbon dioxide absorbing unit may be, for example, zeolite or activated carbon. Further, the carbon dioxide absorbing and releasing unit 11 may be regenerated by, for example, a pressure change or the like other than the temperature change.

  The heating and cooling unit 12 may not be a member capable of both heating and cooling, and may be formed of separate members of a member performing heating and a member performing cooling. The heating and cooling unit 12 may not be in direct contact with the carbon dioxide absorption and release unit 11. The heating and cooling unit 12 may contact the carbon dioxide absorbing and releasing unit 11 indirectly via a member supporting the carbon dioxide absorbing and releasing unit 11. Moreover, the heating and cooling unit 12 and the carbon dioxide absorption and release unit 11 may be separated. The heating and cooling unit 12 may heat or cool the carbon dioxide absorbing and releasing unit 11 by, for example, heating or cooling the air before passing through the carbon dioxide absorbing and releasing unit 11.

  The air conditioner 100 of the present embodiment further includes a carbon dioxide detection sensor 13 and an infrared sensor 14. The carbon dioxide detection sensor 13 detects the concentration of carbon dioxide in the air. The carbon dioxide detection sensor 13 is attached to, for example, the lower surface of the housing 1. The carbon dioxide detection sensor 13 is configured to detect the concentration of carbon dioxide in the room in which the air conditioner 100 is installed.

  Moreover, the infrared sensor 14 is for detecting the information regarding the person who is in the room in which the air conditioning apparatus 100 was installed. The infrared sensor 14 is attached to, for example, the front center of the housing 1. The infrared sensor 14 is provided to be movable vertically and horizontally. The infrared sensor 14 scans a room to detect information about a person in the room.

  As described above, the carbon dioxide detection sensor 13 detects the concentration of carbon dioxide in the room. The carbon dioxide detection sensor 13 is an example of a detection unit that detects the concentration of carbon dioxide in a room. Further, the infrared sensor 14 detects, for example, the temperature of a person present in the room in which the air conditioner 100 is installed. The body temperature of the person in the room is one of the factors affecting the concentration of carbon dioxide in the room. For example, it is assumed that the concentration of carbon dioxide in the room increases as the body temperature of the person in the room increases. The infrared sensor 14 is an example of detection means for detecting a factor that affects the concentration of carbon dioxide in the room.

  The air conditioning apparatus 100 may be configured to include any one of the carbon dioxide detection sensor 13 and the infrared sensor 14. The air conditioner 100 may be configured to include detection means for detecting at least one of the concentration of carbon dioxide in the room and the factor affecting the concentration.

  FIG. 3 is a block diagram showing a configuration of a control system of the air conditioning apparatus 100 of the first embodiment. The configuration of the control system of the air conditioner 100 will be described with reference to FIG.

  The air conditioning apparatus 100 includes a control device 20 for controlling the operation of the air conditioning apparatus 100. The control device 20 is configured by an electric circuit. The carbon dioxide detection sensor 13 and the infrared sensor 14 are electrically connected to the input side of the control device 20. The controller 20 operates based on the electrical signals input from the carbon dioxide detection sensor 13 and the infrared sensor 14.

  Various actuators are electrically connected to the output side of the control device 20. In the present embodiment, the fan 10 and the heating and cooling unit 12 are connected to the output side of the control device 20. The controller 20 controls the operation of the fan 10 and the heating and cooling unit 12. Further, for example, as shown in FIG. 3, the vertical wind direction plate stepping motor 5a, the left and right wind direction plate stepping motor 6a, and the sensor stepping motor 14a are electrically connected to the output side of the control device 20.

  The vertical wind direction plate stepping motor 5 a is for moving members such as a support arm connected to the vertical wind direction plate 5. The left and right wind direction plate stepping motor 6 a is for moving a member such as a support arm connected to the left and right wind direction plate 6. The wind direction of the air blown out from the blowout port 3 is adjusted by the control device 20 controlling the vertical wind direction plate stepping motor 5a and the left and right wind direction plate stepping motor 6a.

  The sensor stepping motor 14 a is for moving the infrared sensor 14. The infrared sensor 14 scans the inside of the room by the sensor stepping motor 14 a being controlled by the control device 20. A remote controller or the like (not shown) may be connected to the control device 20.

  As shown in FIG. 3, the control device 20 according to the present embodiment includes an operation control unit 21, a condition determination unit 22, and a storage unit 23. The operation control unit 21 is for controlling the fan 10 and the heating and cooling unit 12. The operation control unit 21 is an example of a control unit that controls the regeneration unit and the blower unit.

  The condition determination unit 22 is for performing determination based on the detection result of the carbon dioxide detection sensor 13 and the detection result of the infrared sensor 14. The storage unit 23 is also for storing various types of information necessary for the operation of the control device 20. In the present embodiment, the storage unit 23 stores information on the first condition and the second condition. Storage of the information on the first condition and the second condition may be performed in advance, or may be performed by the user using a remote controller or the like. Also, the first condition and the second condition may be changeable by a remote controller or the like.

  The condition determination unit 22 performs determination based on the signals input from the carbon dioxide detection sensor 13 and the infrared sensor 14 and the information stored in the storage unit 23. More specifically, the condition determination unit 22 determines whether the detection result of the carbon dioxide detection sensor 13 and the detection result of the infrared sensor 14 satisfy the first condition. Further, the condition determination unit 22 determines whether the detection result of the carbon dioxide detection sensor 13 and the detection result of the infrared sensor 14 satisfy the second condition.

  Condition determination unit 22 and storage unit 23 in the present embodiment determine whether the detection result of the detection means satisfies the first condition and whether the detection result of the detection means satisfies the second condition An example of The operation control unit 21 that is an example of the control unit controls the fan 10 and the heating and cooling unit 12 based on the determination results of the condition determination unit 22 and the storage unit 23 that are examples of the determination unit.

  FIG. 4 is a diagram showing an example of the configuration of a processing circuit that realizes the function of the control device 20 according to the first embodiment. Each function of the operation control unit 21, the condition determination unit 22, and the storage unit 23 of the control device 20 is realized by, for example, a processing circuit. The processing circuit may be dedicated hardware 30. The processing circuit may comprise a processor 31 and a memory 32. A portion of the processing circuitry may be formed as dedicated hardware 30, and the processing circuitry may further comprise processor 31 and memory 32. In the example shown in FIG. 4, a part of the processing circuit is formed as dedicated hardware 30. Further, in the example shown in FIG. 4, the processing circuit further includes a processor 31 and a memory 32 in addition to the dedicated hardware 30.

  A processing circuit, a portion of which is at least one dedicated hardware 30, is, for example, a single circuit, a complex circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. .

  When the processing circuit includes at least one processor 31 and at least one memory 32, each function of the operation control unit 21, the condition determination unit 22, and the storage unit 23 of the control device 20 may be software, firmware, or software and firmware. It is realized by the combination.

  The software and firmware are described as a program and stored in the memory 32. The processor 31 implements the functions of the respective units by reading and executing the program stored in the memory 32. The processor 31 is also referred to as a central processing unit (CPU), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. The memory 32 corresponds to, for example, nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM and EEPROM, or a magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD and the like.

  Thus, the processing circuit can realize each function of the operation control unit 21, the condition determination unit 22, and the storage unit 23 of the control device 20 by hardware, software, firmware, or a combination thereof. The configuration of the air conditioner 100 is not limited to the configuration in which the operation is controlled by a single control device 20. The air conditioning apparatus 100 may be configured such that the operation is controlled by cooperation of a plurality of devices.

  Next, with reference to a flowchart, the operation of the air conditioning apparatus 100 in the present embodiment will be described in more detail. FIG. 5 is a flowchart showing a first operation example of the air conditioning apparatus 100 of the first embodiment. FIG. 6 is a flowchart showing a second operation example of the air conditioning apparatus 100 of the first embodiment.

  First, a first operation example will be described with reference to FIG. The operation of the air conditioning apparatus 100 starts, for example, by an operation from the user. The operation of the air conditioning apparatus 100 may be automatically started without the need for an operation from the user. In the first operation example, when the operation of the air conditioner 100 is started, detection of the concentration of carbon dioxide in the room is performed by the carbon dioxide detection sensor 13 (step S11).

  When the concentration of carbon dioxide in the room is detected in step S11, it is determined whether the concentration is higher than the reference (step S12). The determination of step S12 is performed by the condition determination unit 22. The reference of the concentration of carbon dioxide is stored in the storage unit 23 as information on the first condition and the second condition. When the concentration of carbon dioxide in the room is higher than the reference, the condition determination unit 22 determines that the first condition is satisfied. When the concentration of carbon dioxide in the room is lower than the reference, the condition determination unit 22 determines that the second condition is satisfied.

  If the first condition is satisfied, that is, if the concentration of carbon dioxide in the room is higher than the reference, the fan 10 starts operation (step S13). The process of step S13 is performed by the operation control unit 21. When the condition determination unit 22 determines that the first condition is satisfied, the operation control unit 21 that is an example of the control unit causes the fan 10 that is an example of the blowing unit to generate an air flow.

  When the fan 10 generates an air flow, indoor air is taken into the air passage 7. The carbon dioxide in the air taken into the air passage 7 is absorbed by the carbon dioxide absorbing and discharging unit 11. The air conditioning apparatus 100 blows out air having a reduced concentration of carbon dioxide from the blowout port 3. As described above, according to the present embodiment, when the concentration of carbon dioxide in a room is high, the concentration of carbon dioxide in the room is automatically reduced.

  When the operation of the fan 10 is started in step S13, the heating and cooling unit 12 cools the carbon dioxide absorbing and discharging unit 11 (step S14). The process of step S14 is performed by the operation control unit 21. The operation control unit 21 which is an example of the control means is an example of a carbon dioxide absorbing means in the heating and cooling unit 12 which is an example of the regenerating means when the condition judging portion 22 determines that the first condition is satisfied. The carbon dioxide absorption and release unit 11 is cooled. The carbon dioxide absorbing and releasing unit 11 formed of an amine-based polymer compound absorbs carbon dioxide more efficiently by being cooled. Thus, with the air conditioning apparatus 100 of the present embodiment, the concentration of carbon dioxide in the room can be reduced more effectively. In addition, when step S14, ie, the carbon dioxide absorption part 11, is being cooled, fan 10 may be stopped.

  When the second condition is satisfied, that is, when the concentration of carbon dioxide in the room is lower than the reference, the heating and cooling unit 12 heats the carbon dioxide absorption and release unit 11 as shown in FIG. (Step S15). The process of step S15 is performed by the operation control unit 21. The operation control unit 21 which is an example of the control means is an example of a carbon dioxide absorbing means in the heating and cooling unit 12 which is an example of the regenerating means when the condition judging portion 22 determines that the second condition is satisfied. The carbon dioxide absorbing and releasing unit 11 is heated. Thus, the carbon dioxide absorbing and releasing unit 11 formed of the amine-based polymer compound is regenerated. In the present embodiment, when the concentration of carbon dioxide in the room is lower than the reference, the carbon dioxide absorption and release unit 11 is automatically regenerated. In addition, when step S15, ie, the carbon dioxide absorption part 11, is being heated, fan 10 may be operating. The carbon dioxide absorbing and releasing unit 11 is more efficiently regenerated by heating the carbon dioxide absorbing and releasing unit 11 in a state where the fan 10 is operated.

  If it is the air conditioning apparatus 100 which performs the process of above-described step S11 to step S15, absorption and discharge of carbon dioxide will be selectively performed according to the concentration of carbon dioxide in a room. The air conditioning apparatus 100 can more effectively adjust the concentration of carbon dioxide in the room according to the concentration of carbon dioxide in the room. The air conditioning apparatus 100 can bring the concentration of carbon dioxide in the room close to a preset reference concentration without requiring an operation from the user.

  Note that the determination in step S12 in the above embodiment may not be determination as to whether it is higher than the reference, but may be determination as to whether it is equal to or higher than the reference. Also, the criteria for determining whether the first condition is satisfied and the criteria for determining whether the second condition are satisfied may be different from each other. Specifically, the condition determination unit 22 may perform the first determination and the second determination. The first determination is determination of whether the carbon dioxide concentration standard is higher than the first standard. The second determination is determination of whether the carbon dioxide concentration standard is lower than the second standard. The air conditioning apparatus 100 may be configured such that the processes of step S13 to step S15 are not performed when both the first condition and the second condition are not satisfied.

  Next, a second operation example will be described with reference to FIG. Steps S21 to S25 in FIG. 6 correspond to steps S11 to S15 in FIG. 5, respectively. In the second operation example, when the operation of the air conditioner 100 is started, detection of the temperature of a person in the room is performed by the infrared sensor 14 (step S21).

  When the body temperature is detected in step S21, it is determined whether the body temperature is higher than the reference (step S22). The determination of step S22 is performed by the condition determination unit 22. The reference of the body temperature is stored in the storage unit 23 as information on the first condition and the second condition. The condition determination unit 22 determines that the first condition is satisfied when the temperature of the person in the room is higher than the reference. The condition determination unit 22 determines that the second condition is satisfied when the temperature of the person in the room is lower than the reference.

  When there are a plurality of persons in the room, the infrared sensor 14 may detect the body temperature of a specific person or may detect the body temperatures of a plurality of persons in step S21. The value of the body temperature to be compared with the reference in step S22 may be the value of the body temperature of a specific person, or may be the average value of the body temperatures of a plurality of persons.

  If the first condition is satisfied, that is, if the body temperature of the person in the room is higher than the reference, the fan 10 starts operation as in step S13 described above (step S23). As described above, the temperature of the person in the room is one of the factors that affect the concentration of carbon dioxide in the room. It is assumed that the concentration of carbon dioxide in the room increases as the body temperature of the person in the room increases. In the present embodiment, when there is a possibility that the concentration of carbon dioxide in the room is high, the concentration of carbon dioxide in the room is automatically reduced.

  When the operation of the fan 10 is started in step S23, the heating and cooling unit 12 cools the carbon dioxide absorbing and discharging unit 11 (step S24) as in step S14 described above. In the air conditioner 100, the concentration of carbon dioxide in the room can be more effectively reduced even in the second operation example. The fan 10 may be stopped while the step S24, that is, the carbon dioxide absorbing and discharging unit 11 is being cooled.

  If the second condition is satisfied, that is, if the body temperature of the person in the room is lower than the reference, the heating and cooling unit 12 heats the carbon dioxide absorbing and releasing unit 11 as in step S15 (step S25). Thus, the carbon dioxide absorbing and releasing unit 11 formed of the amine-based polymer compound is regenerated. In the second operation example, when there is a possibility that the concentration of carbon dioxide in the room is lower than the reference, the carbon dioxide absorption and release unit 11 is automatically regenerated.

  In the case of the air conditioning apparatus 100 that executes the processes of steps S21 to S25 described above, the concentration of carbon dioxide in the room is more effectively adjusted, as in the case of the air conditioning apparatus 100 that performs the processes of steps S11 to S15. Can.

  The air conditioning apparatus 100 may be configured to perform at least one of the first operation example and the second operation example described above. Also, the air conditioning apparatus 100 may perform an operation combining the first operation example and the second operation example.

  In the above embodiment, the infrared sensor 14 detects the temperature of the person in the room. The infrared sensor 14 may detect, for example, the number of people in the room. The condition determination unit 22 may determine that the first condition is satisfied when the number of persons detected by the infrared sensor 14 is larger than the reference. The condition determination unit 22 may determine that the second condition is satisfied when the number of persons detected by the infrared sensor 14 is smaller than the reference. The condition determination unit 22 and the infrared sensor 14 may detect and determine the presence or absence of a person in the room. The air conditioning apparatus 100 may be configured to selectively perform absorption and release of carbon dioxide depending on the presence or absence or the number of people in the room.

  In addition, the air conditioning apparatus 100 automatically operates the fan 10 to absorb carbon dioxide when the temperature of a person in the room continues to rise for a certain period of time according to the temperature detected by the infrared sensor 14 May be configured. The air conditioning apparatus 100 may be configured such that the carbon dioxide absorbing and discharging unit 11 is cooled when the temperature of the person in the room continues to rise for a certain period of time.

  The air conditioning apparatus 100 may include a device such as a Doppler sensor that detects a human heart rate as an example of a detection unit that detects a factor that affects the concentration of carbon dioxide in a room. The condition determination unit 22 may determine that the first condition is satisfied when the heart rate of the person in the room is higher than the reference. The condition determination unit 22 may determine that the second condition is satisfied when the heart rate of the person in the room is lower than the reference. The air conditioner 100 may also be configured to automatically drive the fan 10 to absorb carbon dioxide when the heart rate of a person in the room continues to rise for a certain period of time. The air conditioning apparatus 100 may be configured such that the carbon dioxide absorbing and discharging unit 11 is cooled when the heart rate of the person in the room continues to rise for a certain period of time.

  The air conditioning apparatus 100 may include an illuminance sensor that detects the illuminance in the room as an example of a detection unit that detects a factor that affects the concentration of carbon dioxide in the room. When the room is bright, there is a high possibility that there is a person in the room. When the room is dark, there is a high possibility that there is no person in the room. The presence or absence of people affects the concentration of carbon dioxide in the room. That is, the illuminance in the room is a factor indirectly affecting the concentration of carbon dioxide in the room. The condition determination unit 22 may determine that the first condition is satisfied when the illuminance in the room is higher than the reference. The condition determination unit 22 may determine that the second condition is satisfied when the illuminance in the room is lower than the reference.

  The air conditioning apparatus 100 may include a temperature sensor that detects the temperature inside the room as an example of a detection unit that detects a factor that affects the concentration of carbon dioxide in the room. When the temperature in the room is high, the number of people in the room is large, or the temperature of the person in the room is likely to be high. Thus, the indoor temperature is a factor indirectly affecting the concentration of carbon dioxide in the room. The condition determination unit 22 may determine that the first condition is satisfied when the temperature inside the room is higher than the reference. The condition determination unit 22 may determine that the second condition is satisfied when the temperature of the room is lower than the reference.

  The air conditioning apparatus 100 may have a timer that measures the current time as an example of a detection unit that detects a factor that affects the concentration of carbon dioxide in the room. The condition determination unit 22 may determine that the first condition is satisfied when the current time is the first time zone. The condition determination unit 22 may determine that the second condition is satisfied when the current time is the second time zone. The first time zone and the second time zone are set, for example, by the user according to the schedule of the user. In addition, the first time zone may be set as a daytime in which the amount of activity of people in the room is predicted to be large. The second time zone may be set as a night when it is predicted that the amount of human activity in the room will be small.

  In the above embodiment, the carbon dioxide absorbing and releasing unit 11 is disposed in the air passage 7 at a position upstream of the heat exchanger 9. As a result, the carbon dioxide absorbing and releasing unit 11 is less susceptible to the operating condition of the heat exchanger 9. The carbon dioxide absorption and release unit 11 functions stably regardless of whether the air conditioning apparatus 100 performs a heating operation or a cooling operation.

  FIG. 7 is a view schematically showing a modification of the first embodiment. The basic configuration of the air conditioning apparatus 101 shown in FIG. 7 is the same as the configuration of the air conditioning apparatus 100. The air conditioning apparatus 101 includes a carbon dioxide absorption and release filter 8a and a filter heating and cooling unit 12a.

  The carbon dioxide absorption and release filter 8a corresponds to one in which the filter 8 and the carbon dioxide absorption and release unit 11 are integrally formed. The carbon dioxide absorption and release filter 8a is formed by supporting a material such as polymer compound particles having an amino group on a filter-like carrier. The filter heating / cooling unit 12a selectively heats or cools the carbon dioxide absorption / release filter 8a. The carbon dioxide absorption and release filter 8a in the present modification is an example of a carbon dioxide absorption means formed in a filter shape. The carbon dioxide absorption and release filter 8 a of the present modified example contacts air in a wider range than the carbon dioxide absorption and release unit 11. Thereby, absorption and release of carbon dioxide are performed more efficiently.

  In addition, it is preferable that the transition temperature of the carbon dioxide absorption / release part 11 and the carbon dioxide absorption / release filter 8a exists between 10 degreeC and 90 degreeC. The phase transition occurs easily because the transition temperature is close to room temperature. In addition, when the transition temperature is equal to or higher than room temperature, the temperature of the carbon dioxide absorbing and releasing portion can be made equal to or lower than the transition temperature by natural cooling or air cooling. This eliminates the need for cooling by the heating and cooling unit 12. When the transition temperature is equal to or higher than room temperature, it is possible to use a heating device smaller than the heating and cooling unit 12.

Second Embodiment
Next, the second embodiment will be described. The parts that are the same as or correspond to those in Embodiment 1 are given the same reference numerals, and descriptions thereof will be simplified and omitted. FIG. 8 is a block diagram showing a ventilation system 200 of the second embodiment. The ventilation system 200 of the present embodiment is configured of an air conditioning apparatus 100, a ventilation apparatus 201, and a system control unit 202. The ventilation system 200 may be provided with an air conditioner 101 or another air blower instead of the air conditioner 100. Further, the system control unit 202 may be provided in the air conditioner 100.

  The saturation detection unit 15 is an example of a saturation detection unit that detects that the carbon dioxide absorption unit is saturated. The carbon dioxide absorbing and releasing unit 11 is formed of, for example, a material whose color is changed by adsorbing carbon dioxide. As an example, the saturation detection unit 15 is configured of a sensor that detects the color difference of the color of the carbon dioxide absorption and release unit 11. The saturation detection unit 15 may be configured by concentration sensors provided upstream and downstream of the carbon dioxide absorption and release unit 11. This concentration sensor detects the concentration of carbon dioxide in the air. The saturation detection unit 15 detects that the carbon dioxide absorption and release unit 11 is saturated when the difference between the carbon dioxide concentration upstream and the carbon dioxide concentration downstream of the carbon dioxide absorption and release unit 11 becomes equal to or less than a certain value. It may be configured.

  The ventilation device 201 is a device that performs ventilation between the room where the air conditioning apparatus 100 is installed and the outside. The system control unit 202 is an example of a ventilation control unit that controls the ventilation device 201 based on the detection result of the saturation detection unit 15.

  The system control unit 202 causes the ventilator 201 to ventilate in conjunction with the saturation detection unit 15 detecting that the carbon dioxide absorption / release unit 11 is saturated. For example, when the saturation detection unit 15 detects that the carbon dioxide absorption / release unit 11 is saturated, the system control unit 202 causes the ventilator 201 to start operation. In addition, for example, when the saturation detection unit 15 detects that the carbon dioxide absorption / release unit 11 is saturated while the ventilation device 201 is operating, the system control unit 202 controls the ventilation device 201 to increase the ventilation air volume. . According to the present embodiment, it is possible to obtain a ventilation system 200 capable of automatically reducing the concentration of carbon dioxide in the room even when the carbon dioxide absorption and release unit 11 is saturated.

  In addition, the system control unit 202 ventilates the ventilation device 201 in conjunction with the heating and cooling unit 12 which is an example of the regenerating means regenerates the carbon dioxide absorbing and releasing unit 11 which is an example of the carbon dioxide absorbing means. You may Thereby, the regeneration of the carbon dioxide absorbing and releasing unit 11 is performed more efficiently.

  Moreover, the ventilation system 200 may be provided with the alerting | reporting apparatus 203 as an example of a alerting | reporting means, as shown in FIG. The notification device 203 includes, for example, a buzzer and a liquid crystal screen. The notification device 203 performs notification when the saturation detection unit 15 detects that the carbon dioxide absorbing and releasing unit 11 is saturated. By the notification from the notification device 203, the user can cope with the replacement of the carbon dioxide absorbing and releasing unit 11, the opening of the window, and the like.

  Reference Signs List 1 casing, 2 suction ports, 3 air outlets, 4 panels, 5 vertical wind direction plates, 5a vertical wind direction plate stepping motors, 6 left and right wind direction plates, 6a left and right wind direction plate stepping motors, 7 air passages, 8 filters, 8a dioxide Carbon absorption and release filter, 9 heat exchangers, 10 fans, 11 carbon dioxide absorption and release parts, 12 heating and cooling parts, 12a filter heating and cooling parts, 13 carbon dioxide detection sensors, 14 infrared sensors, 14a stepping motors for motors, 15 saturation detection Parts, 20 control devices, 21 operation control parts, 22 condition judgment parts, 23 storage parts, 30 dedicated hardware, 31 processors, 32 memories, 100 air conditioners, 101 air conditioners, 200 ventilation systems, 201 ventilation devices, 202 System control unit 203 informing device

Claims (13)

Carbon dioxide absorbing means capable of absorbing carbon dioxide in the air;
Regeneration means for causing the carbon dioxide absorbing means to release carbon dioxide to regenerate the carbon dioxide absorbing means;
A blower for generating an air flow passing through the carbon dioxide absorbing device;
Control means for controlling the regeneration means and the blower means;
Detection means for detecting at least one of the concentration of carbon dioxide in the room and the factor affecting the concentration;
Determining means for determining whether the detection result of the detection means satisfies the first condition and whether the detection result of the detection means satisfies the second condition;
Equipped with
When the control means determines that the detection result of the detection means satisfies the first condition by the determination means, the blower means generates an air flow, and the detection result of the detection means satisfies the second condition. A blower according to claim 1, wherein the carbon dioxide absorbing means is regenerated by the regeneration means as judged by the judging means. The detection means detects the concentration of carbon dioxide in the room;
The determination means determines that the detection result of the detection means satisfies the first condition when the concentration detected by the detection means is higher than a reference, and the concentration detected by the detection means is lower than the reference. The air blower according to claim 1, wherein it is determined that the detection result of the detection means satisfies the second condition. The detection means detects the temperature of a person in the room;
The determination means determines that the detection result of the detection means satisfies the first condition when the temperature detected by the detection means is higher than a reference, and the temperature detected by the detection means is lower than the reference. The air blower according to claim 1, wherein it is determined that the detection result of the detection means satisfies the second condition. The detection means detects the number of people in the room;
The determination means determines that the detection result of the detection means satisfies the first condition when the number detected by the detection means is larger than the reference, and the number detected by the detection means is smaller than the reference. The air blower according to claim 1, wherein it is determined that the detection result of the detection means satisfies the second condition. The detection means detects a heart rate of a person indoors,
The determination means determines that the detection result of the detection means satisfies the first condition when the heart rate detected by the detection means is higher than a reference, and the heart rate detected by the detection means is lower than the reference The air blower according to claim 1, wherein in the case, it is determined that the detection result of the detection means satisfies the second condition. The detection means detects the illuminance in the room,
The determination means determines that the detection result of the detection means satisfies the first condition when the illuminance detected by the detection means is higher than a reference, and the illuminance detected by the detection means is lower than the reference. The air blower according to claim 1, wherein it is determined that the detection result of the detection means satisfies the second condition. The detection means detects the temperature inside the room,
The determination means determines that the detection result of the detection means satisfies the first condition when the air temperature detected by the detection means is higher than a reference, and the air temperature detected by the detection means is lower than the reference. The air blower according to claim 1, wherein it is determined that the detection result of the detection means satisfies the second condition. The detection means measures the current time, and the determination means determines that the detection result of the detection means satisfies the first condition when the current time is in the first time zone, and the current The air blower according to claim 1, wherein when the time is a second time zone, it is determined that the detection result of the detection means satisfies the second condition. At least a part of the carbon dioxide absorbing means is formed of an amine-based polymer compound,
The regeneration means can selectively heat and cool the carbon dioxide absorbing means,
The control means causes the regeneration means to cool the carbon dioxide absorbing means when the determination means determines that the detection result of the detection means satisfies the first condition, and the detection result of the detection means is the second. The air blower according to any one of claims 1 to 8, wherein the carbon dioxide absorbing means is heated by the regenerating means when it is determined by the determining means that the condition is satisfied. Saturation detection means for detecting that the carbon dioxide absorption means is saturated;
Reporting means for reporting when the saturation detection means detects that the carbon dioxide absorption means is saturated;
The air blower according to any one of claims 1 to 9, comprising: A blower according to any one of claims 1 to 9,
A case having an air passage formed therein,
A heat exchanger disposed in the air passage,
Equipped with
The air conditioning apparatus, wherein the carbon dioxide absorbing means is disposed in the air passage at a position upstream of the heat exchanger. A blower according to any one of claims 1 to 9,
Ventilation system that ventilate between indoor and outdoor;
Ventilation control means for controlling the ventilation device;
Equipped with
The ventilation control means causes the ventilation system to ventilate in conjunction with the regeneration means regenerating the carbon dioxide absorbing means. The air blower according to any one of claims 1 to 9, further comprising saturation detection means for detecting that the carbon dioxide absorption means is saturated.
Ventilation system that ventilate between indoor and outdoor;
Ventilation control means for controlling the ventilation device;
Equipped with
The ventilation control means causes the ventilation device to ventilate in conjunction with detection that the carbon dioxide absorption means is saturated by the saturation detection means.

Images