JP5679012B2 - Blower - Google Patents

Description

  The present invention relates to a blower.

  2. Description of the Related Art Conventionally, there is a blower capable of performing circulation control for circulating indoor air in order to eliminate indoor temperature unevenness.

  For example, in an air cleaner functioning as a blower disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2001-41518), a circulation operation is performed in which the air volume of the blower is changed based on the detected indoor temperature. ing.

  By the way, in Patent Document 1, as the circulation operation, the maximum temperature or the minimum temperature among the indoor temperatures in the past 30 minutes is compared with the current indoor temperature, and the air volume is large when the temperature difference is equal to or larger than a predetermined temperature difference. It has been adjusted to be. That is, in Patent Document 1, it is determined whether or not temperature unevenness occurs in the room by comparing the highest or lowest temperature among the room temperatures within a certain period with the current room temperature. For this reason, there is a possibility that the room temperature that has temporarily changed within a certain period, for example, when the window is opened and the room temperature rapidly drops, is compared with the current room temperature. In such a case, whether or not there is temperature unevenness in the room because the temperature difference of the compared indoor temperatures is equal to or greater than the predetermined temperature difference even though there is actually no temperature unevenness in the room. May be misidentified.

  Therefore, an object of the present invention is to provide a blower device that can reduce the risk of erroneously determining whether or not temperature unevenness occurs in a room in circulation control.

  A blower according to a first aspect of the present invention is a blower capable of performing circulation control for eliminating indoor temperature unevenness, and includes a detection unit, a fan, and a control device. The detection unit detects the temperature in the room. The fan has a variable air volume and generates an air flow in the room. The control device has a storage unit. The storage unit stores the indoor temperature detected by the detection unit. In addition, during the execution of the circulation control, the control device calculates a temperature difference between the current indoor temperature detected by the detection unit and the indoor temperature stored in the storage unit before a predetermined time. The control device switches the air volume of the fan from the first air volume to the second air volume when it is continuously determined a predetermined number of times that the temperature difference is equal to or less than the predetermined temperature difference. The second air volume is smaller than the first air volume.

  In the blower according to the first aspect of the present invention, the temperature difference between the current room temperature and the room temperature before a predetermined time is compared, and a state in which the temperature difference is equal to or less than the predetermined temperature difference continues for a predetermined number of times. Sometimes the fan airflow is switched. For this reason, when the temperature difference between the maximum or minimum indoor temperature detected within a predetermined time and the current indoor temperature is compared and the temperature difference is equal to or less than the predetermined temperature difference, the fan airflow is Rather than being switched, it is possible to increase the accuracy of determination as to whether or not temperature unevenness occurs in the room in circulation control.

  Thereby, it is possible to reduce a possibility that it is erroneously determined whether or not temperature unevenness occurs in the room in the circulation control.

  The blower device according to the second aspect of the present invention is the blower device according to the first aspect, wherein the current indoor temperature detected by the detection unit during the execution of the circulation control is less than a predetermined temperature. Switches the air volume of the fan from the first air volume to the third air volume. Note that the third air volume is an air volume smaller than the first air volume.

  Here, if the air volume of the fan is large when the temperature in the room is low, the user in the room may feel cold. In this blower, even when the circulation control is being executed, if the indoor temperature is lower than the predetermined temperature, the fan air volume is switched to the third air volume smaller than the first air volume. Even during execution, it is possible to reduce the risk that the user in the room feels cold.

  The air blower according to a third aspect of the present invention is the air blower according to the second aspect, wherein the third air volume is smaller than the second air volume. In this blower, when the indoor temperature is lower than the predetermined temperature, the air volume of the fan is switched to the third air volume that is smaller than the second air volume. Therefore, it is possible to reduce the risk that the user in the room feels cold than when the air volume of the fan is switched from the first air volume to the second air volume when the indoor temperature is lower than the predetermined temperature.

  The air blower which concerns on the 4th viewpoint of this invention is the air blower in any one of a 1st viewpoint to the 3rd viewpoint, and predetermined time is 10 minutes.

  Here, the larger the indoor space, the less likely the indoor temperature change occurs. Then, in the circulation control, if it is determined that there is no temperature unevenness in the room if the temperature difference between the current room temperature and the past room temperature is small, the temperature change in the room is unlikely to occur. If the time interval between the present and the past for which the temperature difference is calculated is too short, it may be erroneously determined whether or not temperature unevenness occurs in the room.

  In this blower, when the air volume of the fan is switched, the current indoor temperature is compared with the indoor temperature more than 10 minutes before the current time. For example, the current indoor temperature and the indoor temperature five minutes before the current time are compared. Rather than being compared with the temperature, it is possible to reduce the risk of erroneously determining whether or not temperature unevenness has occurred in the room.

  The air blower which concerns on the 5th viewpoint of this invention is the air blower of a 4th viewpoint. WHEREIN: The indoor temperature for every time in the range for 0.5 to 2 minutes is stored in a memory | storage part. In this blower, since the time interval of the temperature of each room stored in the storage unit is shorter than the predetermined time which is the time interval between the room temperatures to be compared, it is determined whether or not temperature unevenness occurs in the room. The room temperatures that are compared when judged will overlap. Therefore, for example, compared with a case where the indoor temperature is stored in the storage unit at predetermined time intervals, the indoor temperature change can be determined finely.

  The blower device according to a sixth aspect of the present invention is the blower device according to any one of the first to fifth aspects, wherein the control device changes the fan air volume from the first air volume to the second air volume during the execution of the circulation control. If it is determined that the temperature difference is greater than the predetermined temperature difference after switching, the fan air volume is switched from the second air volume to the first air volume. In this blower, the temperature difference in the room is repeatedly compared during the circulation control, and the air volume of the fan is switched based on the temperature difference. It can be prevented from continuing.

  The air blower which concerns on the 7th viewpoint of this invention is provided with the air purifying part which cleans the air in the air flow produced | generated by the fan in the air blower in any one of the 1st viewpoint to the 6th viewpoint. For this reason, in this air blower, indoor air can be purified while eliminating indoor temperature unevenness.

  In the air blower according to the first aspect of the present invention, it is possible to reduce the possibility of erroneous determination as to whether or not temperature unevenness occurs in the room in the circulation control.

  In the air blower according to the second aspect of the present invention, it is possible to reduce the possibility that the user in the room feels cold even during the execution of the circulation control.

  In the air blower according to the third aspect of the present invention, it is possible to reduce the risk that the user in the room feels cold.

  In the air blower according to the fourth aspect of the present invention, it is possible to reduce a possibility that it is erroneously determined whether or not temperature unevenness occurs in the room.

  In the blower according to the fifth aspect of the present invention, the temperature change in the room can be determined finely.

  In the air blower according to the sixth aspect of the present invention, it is possible to prevent the state in which the temperature unevenness in the room has occurred from continuing for a long time.

  In the air blower according to the seventh aspect of the present invention, it is possible to clean indoor air while eliminating indoor temperature unevenness.

The front perspective view of the dehumidification humidification air cleaner concerning one embodiment of the present invention. II-II sectional view taken on the line of FIG. The exploded view of the dehumidification humidification air cleaner concerning one embodiment of the present invention. The front view of the dehumidification / humidification air cleaner in the state which removed the front panel, the discharge unit, the filter unit, and the front frame. The conceptual diagram showing the flow of the air at the time of the driving | operation of the dehumidification / humidification air cleaner which concerns on one Embodiment of this invention. The schematic block diagram of a dehumidification unit. FIG. The control block diagram of a control apparatus. The flowchart which shows the flow of a process of a circulation operation control part. The conceptual diagram which shows the relationship between room temperature data stored in a room temperature memory | storage part, and time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention, and can be modified as appropriate without departing from the scope of the invention. In the following description, terms indicating directions such as up, down, left, right, front (front), and back (back) are used. These directions are shown in FIG. 1 unless otherwise specified. Means direction.

(1) Dehumidified / humidified air purifier 100
(1-1) Overview FIG. 1 is a front perspective view of a dehumidified / humidified air cleaner (hereinafter referred to as a dehumidified / humidified air cleaner) 100 according to an embodiment of the present invention. The dehumidifying / humidifying air cleaner 100 is a floor-standing type and is installed on an indoor floor or the like.

  The dehumidifying / humidifying air cleaner 100 has a plurality of operation modes such as an air cleaning operation, a dehumidifying operation, and a humidifying operation, and these operations are selected individually or in combination according to an instruction from the user. For example, when the air cleaning operation is selected as the operation mode, the dehumidifying / humidifying air cleaner 100 performs an air cleaning operation that takes in air in the indoor space, removes dust, and discharges it to the indoor space. In addition, when the dehumidifying operation is selected as the operation mode, the dehumidifying / humidifying air cleaner 100 performs the dehumidifying operation of taking in the air in the indoor space, dehumidifying it, and discharging it to the indoor space. Further, when the humidifying operation is selected as the operation mode, the dehumidifying / humidifying air cleaner 100 performs a humidifying operation of taking in air in the indoor space, humidifying it, and discharging it to the indoor space. In the dehumidifying operation and the humidifying operation, the air cleaning operation is performed in combination with the dehumidifying operation and the humidifying operation.

  Further, the dehumidifying / humidifying air cleaner 100 can execute a circulation operation, and the circulation operation is executed in combination with other operations in accordance with an instruction from the user. The circulation operation is an operation for eliminating temperature unevenness occurring in the upper and lower portions of the room where the dehumidifying / humidifying air cleaner 100 is installed, and is an operation executed by changing the air volume of the fan 50.

  Further, the dehumidifying / humidifying air cleaner 100 has a five-step air volume mode including a maximum air volume operation, a strong air volume operation, a standard air volume operation, a low air volume operation, and a static air volume operation. The air volume generated in each air volume operation is different, the air volume generated in the maximum air volume operation is the largest, and the air volume generated in the static air volume operation is the smallest.

(2) Detailed configuration of the dehumidifying / humidifying air cleaner 100 Hereinafter, the details of the dehumidifying / humidifying air cleaner 100 will be described with reference to FIGS. 1 to 9. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is an exploded view of the dehumidifying / humidifying air cleaner 100. FIG. 4 is a front view of the dehumidifying / humidifying air cleaner 100 with the front panel 16, the discharge unit 20, the filter unit 30, and the front frame 41 removed. FIG. 5 is a conceptual diagram showing the air flow when the dehumidifying / humidifying air cleaner 100 is in operation.

(2-1) Main body casing 10
The outline of the dehumidifying / humidifying air cleaner 100 is constituted by a main body casing 10 having a substantially rectangular parallelepiped shape. The main body casing 10 is mainly composed of a casing member including a bottom surface portion 11, a back surface portion 12, a left side wall portion 13, a front panel 16 and a ceiling portion 15.

  The bottom surface portion 11 has a substantially rectangular shape that is long in the left-right direction in plan view, and constitutes a bottom surface portion of the dehumidifying / humidifying air cleaner 100.

  The back surface portion 12 constitutes a back surface portion and a right side surface portion of the dehumidifying / humidifying air cleaner 100. The lower end portion of the back surface portion 12 has a substantially L shape in plan view, and the lower end portion is fixed to the bottom surface portion 11.

  The left side wall portion 13 constitutes the left side surface portion of the dehumidifying / humidifying air cleaner 100. In the left side wall portion 13, a water tank opening 13a and a drain tank opening 13b are formed. A space for accommodating the water tank 73 and the drain tank 240 is formed in the main casing 10 from the water tank opening 13a and the drain tank opening 13b toward the right side (inner side). During the operation of the dehumidifying / humidifying air cleaner 100, the water tank opening 13a and the drain tank opening 13b are closed by housing the water tank 73 and the drain tank 240 in the main body casing 10 (see FIG. 1). ).

  The ceiling portion 15 constitutes a ceiling portion of the dehumidifying / humidifying air cleaner 100 and is fixed to the back surface portion 12 and the left side wall portion 13. The front portion of the ceiling portion 15 is disposed so as to be inclined so as to have a downward slope in the front direction. In addition, an operation panel 115 on which a user inputs instructions is disposed in front of the ceiling portion 15.

  Further, a blower outlet 103 for blowing out purified air from the inside of the main body casing 10 into the room is formed in the ceiling portion of the main body casing 10. The air outlet 103 is located between the rear part of the ceiling part 15 and the upper part of the back part 12. The blower outlet 103 is covered and closed by the blower outlet blade 151 when the dehumidifying / humidifying air cleaner 100 is in the operation stop state. Further, when the dehumidifying / humidifying air cleaner 100 is in an operating state, the air outlet 103 is exposed and opened when the air outlet blade 151 is driven. Note that the air outlet blade 151 is driven by driving the air outlet blade motor M151 (see FIG. 8).

  The front panel 16 constitutes a front portion of the dehumidifying / humidifying air cleaner 100. The front panel 16 is fixed to the bottom surface portion 11 and the ceiling portion 15 and can be removed by pulling in the front direction.

  Further, a side suction port 102 for taking in indoor air into the inside is formed in a side surface portion of the main body casing 10. The side suction port 102 includes a right side suction port 102b and a left side suction port 102a. The right side suction port 102 b is located between the right side portion of the front panel 16 and the back surface portion 12. The left side suction port 102 a is located between the left side portion of the front panel 16 and the left side wall portion 13. The right side suction port 102b and the left side suction port 102a are formed so as to extend in the vertical direction of the main body casing 10. Further, a temperature detector 199 (see FIG. 8) is provided in the vicinity of the left side suction port 102a. The temperature detection unit 199 detects the temperature of the indoor air taken into the main body casing 10 and sends the detection result to the control device 90 every predetermined period.

  In the main body casing 10 configured as described above, the discharge unit 20, the filter unit 30, the frame 40, the fan 50, the dehumidifying unit 60, the humidifying unit 70, the streamer discharge unit 80, the emitted ion generation unit 81, and the electrical components are provided. A box 90a and the like are stored. In addition, although the main body casing 10 of this embodiment is comprised from the bottom face part 11, the back part 12, the left side wall part 13, the ceiling part 15, the front panel 16, etc., these are integrally shape | molded and comprised. Also good.

(2-2) Discharge unit 20
The discharge unit 20 includes a left discharge unit 20a and a right discharge unit 20b. The left discharge unit 20a and the right discharge unit 20b have a vertically long cylindrical shape. The left discharge unit 20a is disposed in the vicinity of the left side suction port 102a. The right discharge unit 20b is disposed in the vicinity of the right side suction port 102b. For this reason, the air taken in from the left side suction port 102a passes through the left discharge unit 20a, and the air taken in from the right side suction port 102b passes through the right discharge unit 20b.

  The left discharge unit 20a and the right discharge unit 20b have a tungsten ionization wire as a positive electrode and a stainless metal plate-like electrode as a negative electrode.

  Further, the discharge unit 20 is connected to a first power supply unit 120 (see FIG. 8) disposed inside the electrical component box 90a. The first power supply unit 120 receives or supplies power from the control device 90, which will be described later, or supplies or interrupts power to the discharge unit 20. In the discharge unit 20, when electric power is supplied from the first power supply unit 120 and a high voltage is applied, a potential difference occurs between the positive electrode and the negative electrode, and corona discharge occurs to generate ions. By this discharge, dust in the air passing through the left discharge unit 20a and the right discharge unit 20b is charged.

(2-3) Filter unit 30
The filter unit 30 is disposed in the main body casing 10 so that the air flow AF taken into the main body casing 10 from the side suction port 102 passes. As shown in FIG. 5, the filter unit 30 includes a pre-filter 31, an electrostatic dust collection filter 32, and a deodorization filter 33.

  The air flow AF that has flowed into the main body casing 10 first passes through the prefilter 31, thereby removing large dust from the air.

  Next, the electrostatic dust collection filter 32 having higher dust collection performance than the pre-filter 31 removes fine dust, bacteria, and the like charged through the discharge unit 20. When the dehumidifying / humidifying air cleaner 100 is in an operating state, the electrostatic dust collection filter 32 is charged with a polarity opposite to that of dust passing through the discharge unit 20. For example, when dust passing through the discharge unit 20 is charged with a positive charge, the electrostatic dust collection filter 32 is charged with a negative charge. As a result, fine dust, bacteria, and the like contained in the airflow AF that has passed through the discharge unit 20 are attracted to the electrostatic dust collection filter 32.

  The air that has passed through the electrostatic dust collection filter 32 is decomposed / adsorbed by formaldehyde, odor components, and the like by a deodorizing filter 33 made of activated carbon or the like.

(2-4) Frame 40
The frame 40 is made of, for example, a synthetic resin and includes a front frame 41, a center frame 42, and a rear frame 43.

  The filter unit 30 is fixed to the front portion of the front frame 41. In addition, vertical wind passage members 410 are disposed along the vertical direction at both left and right ends of the front frame 41. In the vertical wind passage member 410, a plurality of discharge ports 41a are formed so as to be arranged in the vertical direction. Further, a streamer discharge unit 80 is fixed to the upper portion of the front frame 41.

  The center frame 42 is disposed on the back side of the front frame 41. Further, a condenser 63 and an evaporator 61 of a dehumidifying unit 60 described later are disposed on the front side of the central frame 42. A humidifying unit 70 is disposed on the back side of the central frame 42. Further, a drain tank 240 is disposed below the central frame 42.

  The rear frame 43 is disposed on the back side of the central frame 42. A humidification unit 70 is disposed between the center frame 42 and the rear frame 43. Further, an electrical component box 90 a that houses a control device 60 that controls the driving of the dehumidifying / humidifying air cleaner 100 is fixed to the upper portion of the rear frame 43. A bell mouth-shaped fan bell mouth 431 is disposed at the center of the rear frame 43. A fan 50 is disposed on the rear side of the rear frame 43, and the airflow AF flows into the fan 50 via the fanbell mouth 431.

(2-5) Streamer discharge unit 80
The streamer discharge unit 80 includes a tungsten needle-like electrode that is a positive electrode, and a plate-like electrode (counter electrode) that faces the electrode. The streamer discharge unit 80 is connected to a second power supply unit 180 (see FIG. 8) disposed inside the electrical component box 90a. The second power supply unit 180 receives or supplies power from the control device 90 or stops power supply, and supplies or blocks power to the streamer discharge unit 80.

  The streamer discharge unit 80 generates a streamer discharge, which is a kind of plasma discharge, when electric power is supplied from the second power supply unit 180 and a high voltage is applied to the needle electrodes. When this streamer discharge is generated, active species which are ions having high oxidative decomposition power are generated. The active species generated by the streamer discharge unit 80 flows into the vertical wind passage member 410 together with the air passing through the streamer discharge unit 80. The air and active species that have flowed into the vertical wind passage member 410 are discharged from the discharge port 41a, merge with the air flow AF, and pass through the filter unit 30. At this time, the active species decomposes and purifies dust and bacteria adsorbed on the electrostatic dust collection filter 32.

(2-6) Emission ion generation unit 81
The emitted ion generation unit 81 is fixed to a scroll casing 52 of the fan 50 described later (see FIG. 3). The emitted ion generation unit 81 communicates with the discharge flow path in the scroll casing 52 through a communication port (not shown).

  A high voltage electrode and a ground electrode are housed inside the emitted ion generation unit 81, and a linear discharge needle electrode is electrically connected to the high voltage electrode (not shown).

  Moreover, the emitted ion production | generation unit 81 is connected with the 3rd power supply part 181 (refer FIG. 8) arrange | positioned inside the electrical component box 90a. The third power supply unit 181 supplies or blocks power to the emitted ion generation unit 81 in response to a signal for supplying power or a signal for stopping power supply from the control device 90 described later. In the emitted ion generation unit 81, a strong electric field is generated between the discharge needle electrode and the ground electrode by receiving power from the third power supply unit 181 and applying a negative high voltage from the high voltage electrode to the discharge needle electrode. Cause it to occur. Then, the vicinity of the tip of the discharge needle electrode breaks down to a corona discharge state, and negative ions are generated. And the produced | generated negative ion flows out in the scroll casing 52 through a communicating port.

(2-7) Fan 50
The fan 50 has a variable air volume and generates an air flow in the room. Further, as shown in FIG. 5, the fan 50 generates an air flow AF that flows into the main body casing 10 and flows out of the main body casing 10. The fan 50 of this embodiment is a so-called sirocco fan, and mainly includes a fan rotor 51 and a scroll casing 52 that houses the fan rotor 51.

  The fan rotor 51 is connected to a rotating shaft of a fan motor M150 disposed on the back side thereof, and rotates when the fan motor M150 is driven. When the fan motor M150 is driven, the fan rotor 51 sucks air from the direction in which the rotation shaft extends and blows it out in the radial direction.

  The fan motor M150 is connected to a fan motor driving unit 192 (see FIG. 8) described later. The fan motor driving unit 192 is disposed inside the electrical component box 90a, and drives the fan motor M150 or stops driving the fan motor M150 by supplying or cutting off power. Further, the fan motor drive unit 192 receives a designated rotational speed drive control signal (described later) from a fan control unit 92 (see FIG. 8) described later, and causes the fan motor M150 to drive at the rotational speed specified in the signal. To supply power. Furthermore, when the fan motor drive unit 192 receives a fan stop signal from the fan control unit 92, the fan motor drive unit 192 stops supplying power.

  The scroll casing 52 is a synthetic resin casing member having a scroll bending portion in which the fan rotor 51 is accommodated. The scroll casing 52 is fixed to the rear portion of the rear frame 43. The scroll casing 52 is opened forward, and the opening functions as the suction port 50 a of the fan 50. Further, an opening is formed in the upper portion of the scroll casing 52, and the opening functions as a discharge port 50 b of the fan 50. The outlet 50b is connected to the outlet 103, and when the outlet 103 is exposed, the outlet 50b is also exposed.

  With this configuration, as shown in FIG. 5, when the fan 50 is driven, an air flow AF that is an air flow that flows into the dehumidifying / humidifying air cleaner 100 and flows out of the dehumidifying / humidifying air cleaner 100 is generated. . When the air flow AF is generated, indoor air is taken into the dehumidifying / humidifying air cleaner 100 through the side suction port 102. The indoor air taken into the dehumidifying / humidifying air cleaner 100 passes through the discharge unit 20 and the filter unit 30 to remove dust and odor components. The air flow AF that has passed through the discharge unit 20 and the filter unit 30 passes through the dehumidifying unit 60 and the humidifying unit 70, and is dehumidified when the dehumidifying / humidifying air cleaner 100 is in the dehumidifying mode. When in the humidification mode, it is humidified. Thereafter, the air is blown out of the dehumidifying / humidifying air cleaner 100 through the air outlet 103 and returned to the room.

  A part of the air flow AF passes through the streamer discharge unit 80 as a tributary BF without being blown out of the dehumidifying / humidifying air cleaner 100. The tributary BF that has passed through the streamer discharge unit 80 flows into the vertical wind passage member 410 including active species, and joins the air flow AF that passes through the filter unit 30 via the discharge port 41a.

(2-8) Dehumidification unit 60
Hereinafter, the dehumidifying unit 60 will be described with reference to FIGS. 1 to 6. FIG. 6 is a schematic configuration diagram of the dehumidifying unit 60.

The dehumidifying unit 60 is driven during the dehumidifying operation of the dehumidifying / humidifying air cleaner 100 to dehumidify the airflow AF. The dehumidifying unit 60 mainly includes a compressor 62, an evaporator 61, a condenser 63, a refrigerant circuit 66 having a capillary tube 64, and a drain tank 240. As the refrigerant, for example, R134a, various refrigerant such as CO ₂ is employed.

  The refrigerant circuit 66 includes a compressor 62, a condenser 63, a capillary tube 64, and an evaporator 61 connected by a copper refrigerant pipe 65.

  The compressor 62 is, for example, a rotary type or scroll type hermetic compressor. The compressor 62 compresses the inflowing gas refrigerant. The compressor 62 has an accumulator 62a, and the inflow of liquid refrigerant is suppressed. When the compressor 62 is driven, the refrigerant circulates in the refrigerant circuit 66 of the dehumidifying unit 60. The compressor 62 is put into an operating state when the built-in compressor motor M162 is driven. The compressor motor M162 is connected to a control device 90, which will be described later, via a compressor motor drive unit (not shown), and is driven by being supplied with power, and is stopped when the supply of power is cut off. To do.

  The evaporator 61 is, for example, a cross fin type heat exchanger, and is disposed on the back side of the front frame 41. That is, the evaporator 61 is located on the downstream side of the filter unit 30. The evaporator 61 evaporates the liquid refrigerant flowing through the evaporator 61 by exchanging heat with the air in the air stream AF, and cools the air in the air stream AF to a dew point temperature or lower to dehumidify it. The drain water condensed when the air flow AF passes through the evaporator 61 is received by the drain pan 200 disposed below the evaporator 61 and the condenser 63, and is led from the drain pan 200 to the drain tank 240. Water is stored.

  The condenser 63 is, for example, a cross fin type heat exchanger, and is disposed close to the back side of the evaporator 61. The condenser 63 exchanges heat with the air in the air flow AF, thereby condensing the gas refrigerant flowing in the condenser 63 and heating the air in the air flow AF.

  The capillary tube 64 is an expansion unit that expands the liquid refrigerant flowing into the evaporator 61. That is, the capillary tube 64 is expanded and decompressed by passing a high-pressure liquid refrigerant flowing out of the condenser 63.

  In the refrigerant circuit 66 configured as described above, when the compressor 62 is driven, the refrigerant circulates in the refrigerant circuit 66, and the evaporator 61 dehumidifies the indoor air flowing into the main body casing 10.

  The drain tank 240 is for storing the drain water generated in the evaporator 61. The drain tank 240 is accommodated in the main body casing 10 (see FIG. 1). In addition, the drain tank 240 is formed with a recess 240a that can be gripped by inserting a finger. When the finger is inserted into the recess 240a and pulled leftward, the drain tank 240 can be removed from the main body casing 10. ing. In this way, by configuring the drain tank 240 to be detachable, the drain water stored in the drain tank 240 can be easily drained.

(2-9) Humidification unit 70
As shown in FIGS. 1 to 5, the humidification unit 70 is located on the back side of the evaporator 61 and the condenser 63 (downstream of the air flow AF), and vaporizes moisture during the humidification operation in the air flow AF. Humidify by including in the air.

  As shown in FIG. 3, the humidification unit 70 mainly includes a storage portion 72, a water tank 73, and a humidification rotor 71.

  The reservoir 72 stores the water supplied from the water tank 73. The water tank 73 is a tank for storing water to be supplied to the storage unit 72, and is stored in the main body casing 10 (see FIG. 1). Further, the water tank 73 is formed with a recess 73a that can be gripped by inserting a finger. When the finger is inserted into the recess 73a and pulled leftward, the water tank 73 can be removed from the main casing 10. ing. As described above, the water tank 73 is configured to be detachable so that water can be easily put into the water tank 73.

  The humidification rotor 71 rotates when the humidification unit motor M171 (see FIG. 8) is driven. The humidification unit motor M171 is connected to a control device 90, which will be described later, via a humidification unit motor drive unit (not shown), and receives a signal for supplying power or a signal for stopping power supply, so that the humidification rotor 71 is supplied. Or the rotation of the humidification rotor 71 is stopped. Further, the humidification rotor 71 has a structure in which a ring-shaped frame is attached to the outer periphery of the vaporization filter, and humidification is performed by water vaporizing from the vaporization filter during the humidification operation. The ring-shaped frame is provided with a handle (not shown). When the humidification rotor 71 rotates, the handle rod portion is configured to draw water from the storage portion 72 and supply water to the vaporization filter.

(2-10) Operation panel 115
FIG. 7 is an external view of the operation panel 115. The operation panel 115 mainly includes an input key 116 and a display unit 117 (see FIG. 7). A predetermined command is input to the dehumidifying / humidifying air cleaner 100 when the input key 116 is pressed by the user.

  The input key 116 includes an operation on / off key, an operation switching key, an air volume key, and the like. A command for starting operation of the dehumidifying / humidifying air cleaner 100 (hereinafter referred to as an operation start command) or a command for stopping the operation of the dehumidifying / humidifying air cleaner 100 (hereinafter referred to as an operation stop command) is input to the operation on / off key. Button. The operation stop command is input by pressing the operation on / off key while the operation of the dehumidifying / humidifying air cleaner 100 is started. The operation switching key is a button to which a command for executing the dehumidifying operation, a command for canceling the execution of the dehumidifying operation, a command for executing the humidifying operation, and a command for canceling the execution of the humidifying operation are input. The air volume key is a button for the user to select an air volume mode, and a command for changing the air volume mode when pressed (hereinafter referred to as an air volume mode change command) is input.

  The input key 116 includes a circulator key 116a. The circulator key 116a is a button for inputting a command for selecting the introduction of the circulation operation (hereinafter referred to as a circulation operation introduction command). When the introduction of circulation operation is selected and the operation on / off key or the circulator key 116a is pressed, a command for canceling the circulation operation (hereinafter referred to as a circulation operation cancellation command) is input. Then, the circulation operation is canceled. A command input through such an input key 116 is sent to the control device 90.

  The display unit 117 includes a liquid crystal panel, an LED, and the like, and displays the current temperature, temperature setting, the attitude of the outlet blade 151, the air volume mode, and the like.

(2-11) Control device 90
The control device 90 is disposed inside the electrical component box 90a. The control device 90 is a microcomputer including a RAM, a ROM, a CPU, and the like, and controls operations of various devices connected via the interface 911.

(3) Details of Control Device 90 Details of the control device 90 will be described below with reference to FIG. FIG. 8 is a schematic diagram illustrating a schematic configuration of the control device 90 and devices connected to the control device 90.

  The control device 90 includes a temperature detection unit 199, an input key 116, a display unit 117, an outlet blade motor M151, a fan motor drive unit 192, a compressor motor M162, a humidification unit motor M171, and a first power supply unit via an interface 911. 120, the second power supply unit 180, the third power supply unit 181, and the like are connected by wiring 912. The control device 90 controls the operation of various connected devices based on a predetermined command from the user input via the input key 116.

  The control device 90 mainly includes a storage unit 91, a fan control unit 92, and a circulation operation control unit 93.

(3-1) Storage unit 91
The storage unit 91 holds a control program corresponding to each operation. The storage unit 91 holds detection results sent from various sensors including the temperature detection unit 199 for each predetermined period. Furthermore, the storage unit 91 holds a user command input via the input key 116.

(3-2) Fan control unit 92
The fan control unit 92 reads a command from the user held by the storage unit 91 and acquires a control program corresponding to the user command from the storage unit 91. And control is performed according to the acquired control program.

  The fan control unit 92 controls the operations of the blowout blade motor M151 and the fan 50. For example, when an operation start command is input by the user, the fan control unit 92 sends a pulse signal to the air outlet blade motor M151 to drive it, and opens the air outlet blade 151 to expose the air outlet 103. Next, the fan control unit 92 sends a signal for driving the fan motor M150 at the designated rotational speed (hereinafter referred to as a designated rotational speed drive control signal) to the fan motor driving unit 192 to drive the fan 50. Further, the fan control unit 92 sends a signal for stopping the driving of the fan motor M150 to the fan motor driving unit 192 when an operation stop command is input by the user. Thereafter, a pulse signal is sent to the blower blade motor M151 to drive it, and the blower blade 151 is closed.

  Further, when the air volume mode change command is input by the user, the fan control unit 92 sends a designated rotational speed drive control signal corresponding to the air volume mode change command to the fan motor driving unit 192, and the air volume mode of the fan 50 is set. Switch.

  The fan control unit 92 has five operation taps including a maximum operation tap, a strong operation tap, a standard operation tap, a weak operation tap, and a static operation tap. The fan control unit 92 switches the operation tap when an air volume mode change command is input via the input key 116. Specifically, the fan control unit 92 uses the standard airflow operation as the airflow mode change command when the maximum airflow operation is selected, and when the high airflow operation is selected, when the strong airflow operation is selected. The operation tap is switched to the standard operation tap when the is selected, to the weak operation tap when the low airflow operation is selected, and to the static operation tap when the static airflow operation is selected. The fan control unit 92 holds in advance a rotation speed table (not shown) indicating the rotation speed of the fan motor M150 determined for each operation tap, and designates the rotation speed by referring to the rotation speed table. doing. In the rotation speed table, the rotation speed of the fan motor M150 is set so as to decrease in the order of the maximum operation tap, the strong operation tap, the standard operation tap, the weak operation tap, and the static operation tap. And in this embodiment, when the operation tap more than a strong operation tap is selected, the airflow which circulates the upper and lower air in the room | chamber interior in which the dehumidification / humidification air cleaner 100 was installed shall be produced | generated.

  Further, when the fan control unit 92 receives a circulation operation execution signal described later from the circulation operation control unit 93, the fan control unit 92 selects an operation tap corresponding to a predetermined control signal sent from the circulation operation control unit 93. Specify the rotation speed of the selected operation tap. Then, the fan control unit 92 sends a designated rotational speed drive control signal to the fan motor drive unit 192 to drive the fan 50.

(3-3) Circulation operation control unit 93
When a circulation operation introduction command is input via the circulator key 116a, the circulation operation control unit 93 sends a circulation operation execution signal to the fan control unit 92 to execute the circulation control.

  Since only the operation of the fan control unit 92 is controlled when the circulation control is executed, various operations currently being performed are continued. For example, when a circulation operation introduction command is input while the dehumidifying operation is being performed, the operation of the compressor 62 is also continued so that the dehumidifying operation is continued. Further, for example, when a circulation operation introduction command is input while the humidifying operation is performed, the rotation of the humidifying rotor 71 is continued so that the humidifying operation is continued. Thus, the circulation operation is an operation that is executed in combination with various operations that are currently being performed.

  The circulation operation control unit 93 includes an acquisition unit 94, an indoor temperature storage unit 95, a calculation unit 96, a determination unit 97, and a signal generation unit 98, as shown in FIG.

(3-3-1) Acquisition unit 94
When the user inputs a circulation operation introduction command via the circulator key 116 a, the acquisition unit 94 acquires a control program related to circulation control from the storage unit 91 and sends a start command signal to the signal generation unit 98.

  The acquisition unit 94 acquires the latest detection result from the temperature detection unit 199 from the storage unit 91 every predetermined time (1 minute in the present embodiment). The acquisition unit 94 sends the acquired detection result to the indoor temperature storage unit 95. However, the acquisition unit 94, after the circulation operation introduction command is input, until the latest indoor temperature is determined to be equal to or higher than the predetermined temperature by the determination unit 97, and while the air volume mode is the static air volume operation, The acquired detection result is sent to the determination unit 97 without being sent to the room temperature storage unit 95.

  The predetermined time, which is a specific interval at which the acquisition unit 94 acquires the detection result from the temperature detection unit 199, is preset in the control program. In order to perform the determination described below more accurately, the predetermined time is preferably in the range of 0.5 to 2 minutes.

(3-3-2) Indoor temperature storage unit 95
The indoor temperature storage unit 95 sequentially stores the detection results sent from the acquisition unit 94. That is, the room temperature storage unit 95 of the present embodiment stores room temperature data for every predetermined time (1 minute in the present embodiment). The room temperature storage unit 95 is configured to store a plurality of units (15 units in the present embodiment) of room temperature data sent from the acquisition unit 94 every predetermined time as one unit. When the room temperature storage unit 95 newly stores room temperature data, the room temperature storage unit 95 deletes the room temperature data from the oldest one. In the present embodiment, since the room temperature data is sent from the acquisition unit 94 every minute, assuming that the latest indoor temperature data is detected as the current time, the indoor temperature storage unit 95 stores the current temperature from the current time. The room temperature data for every minute up to the point of 15 minutes before is stored (see FIG. 10A).

  The room temperature storage unit 95 receives a determination result that the latest indoor temperature is not equal to or higher than a predetermined temperature or a determination result that the current air flow mode is a static air amount operation from the determination unit 97 described later, and circulation. When the operation cancellation command is input, the currently stored room temperature data is deleted, and the process for newly storing the room temperature data is not performed.

  Further, the number of units of room temperature data that can be stored in the room temperature storage unit 95 is not limited to 15 units in the present embodiment, and is appropriately changed depending on the capacity of the room temperature storage unit 95.

(3-3-3) Calculation unit 96
The calculation unit 96 obtains the current room temperature data detected by the temperature detection unit 199 and the room temperature data stored in the room temperature storage unit 95 before a predetermined time (in this embodiment, 15 minutes ago). Extraction is performed every predetermined time (1 minute in this embodiment), and the temperature difference is calculated. In the present embodiment, since the latest indoor temperature data is stored in the indoor temperature storage unit 95, the calculation unit 96 includes the latest indoor temperature data stored in the indoor temperature storage unit 95 and the indoor temperature storage unit 95. Is extracted as a comparison target and the difference is calculated.

  The room temperature data to be compared by the calculation unit 96 is not limited to the room temperature data 15 minutes before the present embodiment, but may be any room temperature data stored in the room temperature storage unit 95. Good. However, in order to maintain the accuracy of determination by the determination unit 97, which will be described later, it is preferable to extract indoor temperature data of 10 minutes or more before as a comparison target.

(3-3-4) Determination unit 97
The determination unit 97 receives the temperature difference calculated by the calculation unit 96 and determines whether or not the first condition and the second condition are satisfied. The first condition is a condition that the temperature difference calculated by the calculation unit 96 is equal to or less than a predetermined temperature difference (± 2 ° C. in the present embodiment). The second condition is a condition that the first condition is continuously satisfied a predetermined number of times (15 times in the present embodiment).

  Further, the determination unit 97 determines whether the current indoor temperature is equal to or higher than a predetermined temperature (10 ° C. in the present embodiment) based on the latest indoor temperature data detected by the temperature detection unit 199. In the present embodiment, the determination unit 97 updates the latest room temperature data every time the latest room temperature data is sent from the acquisition unit 94 or every time the latest room temperature data is stored in the room temperature storage unit 95. The current room temperature is set, and it is determined whether or not the current room temperature is equal to or higher than a predetermined temperature.

  Further, the determination unit 97 determines whether or not the current air volume mode is a static air volume operation.

  Then, the determination unit 97 sends the determination result to the indoor temperature storage unit 95 or the signal generation unit 98.

  It should be noted that specific numerical values of the predetermined temperature difference of the first condition and the predetermined number of times of the second condition, and specific numerical values of the predetermined temperature used in the determination regarding the latest indoor temperature data are set in advance in the control program. It may be changed as appropriate.

(3-3-5) Signal generator 98
Upon receiving the start command signal from the acquisition unit 94, the signal generation unit 98 generates a circulation operation execution signal and outputs it to the fan control unit 92.

  In addition, when receiving the determination result from the determination unit 97, the signal generation unit 98 generates a control signal and outputs the control signal to the fan control unit 92. Specifically, the signal generation unit 98 determines that the first condition is not satisfied, the determination result that the second condition is not satisfied, the determination result that the latest indoor temperature is equal to or higher than the predetermined temperature, and the current When the determination result that the airflow mode is the static airflow operation is received from the determination unit 97, a control signal (hereinafter referred to as a strong operation tap signal) in which the airflow mode is the high airflow operation is generated and output to the fan control unit 92. To do. In addition, when the signal generation unit 98 receives the determination result that the second condition is satisfied from the determination unit 97, the signal generation unit 98 generates a control signal (hereinafter referred to as a standard operation tap signal) in which the air volume mode is the standard air volume operation. To the fan control unit 92. Furthermore, when the signal generation unit 98 receives a determination result from the determination unit 97 that the latest indoor temperature is not equal to or higher than the predetermined temperature (that is, the latest indoor temperature is lower than the predetermined temperature), the air volume mode is the static air amount operation. A control signal (hereinafter referred to as a static operation tap signal) is generated and output to the fan control unit 92.

(4) Process Flow of Circulation Operation Control Unit 93 Hereinafter, an example of circulation control will be described with reference to FIG. FIG. 9 is a flowchart showing a processing flow of the circulation operation control unit 93. The following is an example of processing, and the circulation operation control unit 93 may execute processing of a flow different from this.

  When the dehumidification / humidification air cleaner 100 is in an operating state and the circulation operation introduction command is input, the acquisition unit 94 acquires a control program related to circulation control from the storage unit 91. Then, the acquisition unit 94 sends a start command signal to the signal generation unit 98 along with the control program, acquires the latest room temperature data from the temperature detection unit 199 from the storage unit 91, and sends it to the determination unit 97. Upon receiving the start command signal from the acquisition unit 94, the signal generation unit 98 generates a circulation operation execution signal and outputs it to the fan control unit 92.

  In step S1, the determination unit 97 receives the latest indoor temperature data from the temperature detection unit 199 sent from the acquisition unit 94, and whether the current indoor temperature is equal to or higher than a predetermined temperature (10 ° C. in the present embodiment). Determine whether or not. When the determination result is NO (ie, when the temperature is lower than the predetermined temperature), the process proceeds to step S2. On the other hand, when the determination result is YES (that is, when the determination temperature is equal to or higher than the predetermined temperature), the process proceeds to step S3.

  In step S <b> 2, the signal generation unit 98 receives a determination result that the current indoor temperature is not equal to or higher than the predetermined temperature (that is, the current indoor temperature is lower than the predetermined temperature) from the determination unit 97, and the signal generation unit 98 receives the static operation tap signal. It is generated and output to the fan control unit 92. When the fan control unit 92 receives the static operation tap signal from the signal generation unit 98, the fan control unit 92 selects the static operation tap and sends a designated rotational speed drive control signal to the fan motor drive unit 192 (however, the air volume mode is already set to the static air volume). When driving, it is not output). Thereby, the air volume mode of the fan 50 is switched to the static air volume operation. Then, the process returns to step S1.

  In step S3, the signal generation unit 98 receives the determination result that the current room temperature is equal to or higher than the predetermined temperature or the determination result that the current air volume mode in step S7 is the static air amount operation from the determination unit 97. A strong operation tap signal is generated and output to the fan control unit 92. When the fan control unit 92 receives the strong operation tap signal from the signal generation unit 98, the fan control unit 92 selects the strong operation tap and sends a designated rotational speed drive control signal to the fan motor drive unit 192 (however, the air volume mode is already in the strong air volume mode). When driving, it is not output). Thereby, the air volume mode of the fan 50 is switched to the high air volume operation. Then, the room temperature data sent from the acquisition unit 94 is sequentially stored in the room temperature storage unit 95 in a state where the air volume mode is switched to the high air volume operation.

  In step S4, the circulation operation control unit 93 determines whether or not a circulation operation release command has been input. When the determination result is NO (that is, when the circulation operation cancellation command is not input), the process proceeds to step S5. On the other hand, when the determination result is YES (that is, when the circulation operation cancellation command is input), the circulation operation control unit 93 ends the execution of the circulation control.

  In step S5, when the data of a plurality of units (15 units in the present embodiment) is stored in the room temperature storage unit 95 (that is, the room temperature data up to 15 minutes before the current time is accumulated). The determination unit 97 determines whether or not the current room temperature is equal to or higher than a predetermined temperature (10 ° C. in the present embodiment). If the determination result is NO (that is, if the determination result is lower than the predetermined temperature), the process proceeds to step S6. On the other hand, when the determination result is YES (ie, when the determination temperature is equal to or higher than the predetermined temperature), the process proceeds to step S7.

  In step S6, the signal generation unit 98 receives a determination result from the determination unit 97 that the current indoor temperature is not equal to or higher than the predetermined temperature (that is, the current indoor temperature is lower than the predetermined temperature), and the signal generation unit 98 receives the static operation tap signal. It is generated and output to the fan control unit 92. When the fan control unit 92 receives the static operation tap signal from the signal generation unit 98, the fan control unit 92 selects the static operation tap and sends a designated rotational speed drive control signal to the fan motor drive unit 192 (however, the air volume mode is already set to the static air volume). When driving, it is not output). Thereby, the air volume mode of the fan 50 is switched to the static air volume operation. Then, the process returns to step S4.

  In step S7, the determination unit 97 determines whether or not the current air volume mode is a static air volume operation. If the determination result is YES (that is, if the current air volume mode is a static air volume operation), the process returns to step S3. On the other hand, when the determination result is NO (that is, when the current air volume mode is the high air volume operation or the standard air volume operation), the process proceeds to step S8.

  In step S8, the determination unit 97 determines whether or not the first condition is satisfied. Specifically, first, the calculation unit 96 uses the latest room temperature data stored in the room temperature storage unit 95 and the room temperature data before a predetermined time (in this embodiment, 15 minutes) as a comparison target. Extract and calculate the difference. Upon receiving the temperature difference calculated by the calculation unit 96, the determination unit 97 determines whether or not the temperature difference is equal to or less than a predetermined temperature difference (± 2 ° C. in the present embodiment). If the determination result is NO (that is, if the temperature difference is greater than ± 2 ° C.), the process proceeds to step S9. On the other hand, when the determination result is YES (that is, when the temperature difference is ± 2 ° C. or less), the process proceeds to step S10.

  In step S9, the determination unit 97 receives a determination result that the first condition or the second condition in step S10 is not satisfied, and the signal generation unit 98 generates a strong operation tap signal to generate a fan control unit 92. Output to. When the fan control unit 92 receives the strong operation tap signal from the signal generation unit 98, the fan control unit 92 selects the strong operation tap and sends a designated rotational speed drive control signal to the fan motor drive unit 192 (however, the air volume mode is already in the strong air volume mode). This is not output when driving). Thereby, the air volume mode of the fan 50 is switched to the high air volume operation. Then, the process returns to step S4.

  In step S10, the determination unit 97 determines whether or not the second condition is satisfied. Specifically, the determination unit 97 determines whether or not the first condition is continuously satisfied a predetermined number of times (in this embodiment, 15 times). When the determination result is NO (that is, when it is not determined that the first condition is satisfied continuously 15 times), the process proceeds to step S9. On the other hand, when the determination result is YES (that is, when it is determined that the first condition is satisfied continuously 15 times), the process proceeds to step S11.

  In step S <b> 11, the determination result that the second condition is satisfied is received from the determination unit 97, and the signal generation unit 98 generates a standard operation tap signal and outputs it to the fan control unit 92. When the fan control unit 92 receives the standard operation tap signal from the signal generation unit 98, the fan control unit 92 selects the standard operation tap and sends a designated rotational speed drive control signal to the fan motor drive unit 192. Thereby, the air volume mode of the fan 50 is switched to the standard air volume operation. Then, the process returns to step S4.

(5) Features (5-1)
In conventional circulation control, the highest indoor temperature or the lowest indoor temperature detected within a certain period of time is compared with the current indoor temperature, and the temperature difference is equal to or greater than a predetermined temperature difference. Some increase the air volume to eliminate temperature unevenness that occurs in the upper and lower parts of the room. That is, in the conventional circulation control, the determination as to whether or not the temperature is uneven in the room is based on the highest indoor temperature or the lowest indoor temperature detected within a predetermined time, and the current indoor temperature. This is based on the temperature difference. Then, for example, the indoor temperature that has temporarily changed within a certain period of time, for example, when the window is opened and the indoor temperature suddenly drops, may be compared with the current indoor temperature. In spite of this, if the compared temperature difference is equal to or greater than the predetermined temperature difference, it may be determined that temperature unevenness has occurred in the room. As described above, in the conventional circulation control, it may be erroneously determined whether or not temperature unevenness occurs in the room.

  Therefore, in the present embodiment, the latest room temperature data stored in the room temperature storage unit 95 is compared with the room temperature data 15 minutes ago, and the temperature difference is calculated. And when it determines with the 1st condition that this temperature difference is less than +/- 2 degreeC being satisfied 15 times continuously, it determines with the 2nd condition being satisfied. When it is determined that the second condition is satisfied and the air volume mode of the fan 50 is the high air volume operation, the air volume mode of the fan 50 is switched from the high air volume operation to the standard air volume operation. . In this way, the latest (current) room temperature data and the past room temperature data 15 minutes ago are used as comparison targets, the temperature difference is calculated, and the temperature difference is ± 2 ° C. or less 15 times. When it is continuous (that is, when the temperature difference is ± 2 ° C. or less for 15 minutes), the air volume mode of the fan 50 is switched to a small value. Compared with the highest indoor temperature or the lowest indoor temperature and the current indoor temperature, and the air volume of the fan 50 is switched based on the temperature difference, whether or not the temperature unevenness occurs in the room in the circulation control. Judgment can be made accurately.

  As a result, in the circulation control, it is possible to reduce a possibility that it is erroneously determined whether or not temperature unevenness occurs in the room.

(5-2)
If the air volume of the fan 50 is large when the indoor temperature is low, the user in the room may feel cold.

  Therefore, in the present embodiment, in the circulation control, if the current indoor temperature is determined to be less than 10 ° C. when the air flow mode of the fan 50 is the high air flow operation, the air flow mode of the fan 50 is set to the high air flow rate. Switching from operation to static air flow operation. For this reason, even during the execution of the circulation control, it is possible to reduce the possibility that the user in the room feels cold.

(5-3)
In the present embodiment, the air volume is smaller in the static air volume operation than in the standard air volume operation. For this reason, in the circulation control, if it is determined that the current room temperature is less than 10 ° C., there is a possibility that the user in the room may feel cold rather than the air volume mode of the fan 50 being switched to the standard air volume operation. It can be reduced.

(5-4)
The larger the indoor space, the less likely the indoor temperature change will occur. Then, in the circulation control, when switching is made so that the air volume of the fan 50 becomes small when the temperature difference between the current room temperature and the past room temperature is small, if the temperature change in the room hardly occurs, If the time interval between the present and the past for which the difference is calculated is too short, it may be erroneously determined whether or not temperature unevenness occurs in the room.

  Therefore, in this embodiment, the latest room temperature data and the room temperature data 15 minutes before stored in the room temperature storage unit 95 are set as comparison targets, and the temperature difference is calculated. For this reason, for example, compared with the current indoor temperature and the indoor temperature five minutes before the present time, it is possible to reduce a possibility that it is erroneously determined whether or not temperature unevenness occurs in the room. .

(5-5)
FIG. 10A is a conceptual diagram showing the relationship between room temperature data stored in the room temperature storage unit 95 of this embodiment and time. FIG.10 (b) is a conceptual diagram which shows the relationship between the room temperature data stored in the room temperature memory | storage part of a comparative example, and time.

  In the present embodiment, the indoor temperature storage unit 95 stores the indoor temperature data (see aq shown in FIG. 10) every minute sent from the acquisition unit 94. In the present embodiment, the latest room temperature data stored in the room temperature storage unit 95 is compared with the room temperature data 15 minutes before the current time. For example, in I shown in FIG. 10, the latest room temperature data o stored in the room temperature storage unit 95 is compared with the room temperature data a 15 minutes before, and in II, the room temperature storage unit 95 stores The latest room temperature data p stored and the room temperature data b 15 minutes before are compared, and in III, the latest room temperature data q stored in the room temperature storage unit 95 and 15 minutes The previous room temperature data c is to be compared. For this reason, the time interval (1 minute interval) between the individual room temperature data stored in the room temperature storage unit 95 is shorter than the time interval (15 minute interval) between the indoor temperature data to be compared. Become. Therefore, the indoor temperature data to be compared when it is determined whether or not to switch the air volume of the fan 50 overlaps. Thus, for example, as shown in FIG. 10B, the indoor temperature data is stored in the indoor temperature storage unit 95 every 15 minutes, and the latest indoor temperature data (o for I, d ′ for II, d ′ for III, s ') and the room temperature data 15 minutes before the present (a for I, o for II, d' for III) are compared, and the temperature change in the room should be judged in detail. Is done.

(5-6)
In the present embodiment, after it is determined in step S11 that the second condition is satisfied and the air volume mode of the fan 50 is switched from the high air volume operation to the standard air volume operation, steps S4, S5, S6, and S7 are performed. If it is determined in step S8 that the first condition is not satisfied (that is, the temperature difference between the latest room temperature data and the past room temperature data 15 minutes ago is greater than ± 2 ° C.). The air volume mode of the fan 50 is switched from the standard air volume operation to the high air volume operation. Thus, during the execution of the circulation control, it is repeatedly determined whether or not the first condition is satisfied, and the air volume mode of the fan 50 is switched according to the determination result. It is possible to prevent the state of being continued for a long time.

(5-7)
In this embodiment, since the air blown out from the blower outlet 103 passes through the filter unit 30, the indoor air is purified while eliminating the temperature unevenness in the room by executing the circulation control. Is able to.

(5-8)
By the way, as a circulation control, for example, if the temperature difference between the current indoor temperature and the past indoor temperature is equal to or larger than the predetermined temperature difference, the air volume mode of the fan 50 is forcibly switched to the predetermined air volume mode for a predetermined time. When such control is performed, during a certain period of time, it is not possible to respond to a change in the indoor temperature, and it is not possible to change to an air volume mode that matches the indoor temperature condition.

  On the other hand, in this embodiment, room temperature data is stored in the room temperature storage unit 95 every minute, and the latest room temperature data stored in the room temperature storage unit 95 and the room temperature 15 minutes ago are stored. The data is used as a comparison target, a temperature difference is calculated, and whether or not the temperature difference is ± 2 ° C. or more is determined every minute. That is, in this embodiment, whether or not the first condition is satisfied is determined every minute, and the air volume mode is switched according to the determination result, so that the air volume mode of the fan 50 is forced for a certain time. Rather than being switched to the predetermined air volume mode, the air volume mode can be changed to match the indoor temperature conditions.

(5-9)
In the present embodiment, when the determination result that the current air flow mode is the static air flow operation is received from the determination unit 97, the room temperature storage unit 95 deletes the currently stored room temperature data, and the room temperature data. Is not stored. That is, the indoor temperature storage unit 95 stores the indoor temperature data when the air flow mode is the high air flow operation and when the air flow mode is the standard air flow operation. Since the room temperature data to be compared when the calculation unit 96 calculates the temperature difference is the room temperature data stored in the room temperature storage unit 95, the case where the air volume mode is a high air volume operation and the standard In the case of the air volume operation, it is determined whether or not the first condition and the second condition are satisfied. In this embodiment, the temperature difference between the latest room temperature data stored in the room temperature storage unit 95 and the room temperature data 15 minutes before is calculated by the calculation unit 96, and the temperature difference is ± 2 ° C. or less. It is determined that the second condition is satisfied when it is determined that the first condition of 15 is continuously satisfied 15 times. That is, when it is determined that the second condition is satisfied, the high air volume operation or the standard air volume operation is continued for at least 30 minutes as the air volume mode.

(6) Modification (6-1) Modification A
In the above embodiment, as an operation mode, an example of a dehumidifying / humidifying air cleaner provided with an air cleaning operation, a dehumidifying operation, and a humidifying operation in addition to the circulation operation is given, but is not limited thereto, and at least the circulation operation is performed. As long as it has. That is, any air blower including the temperature detection unit 199, the fan 50, and the control device 90 may be used.

(6-2) Modification B
In the said embodiment, when the operation tap more than a strong operation tap is selected, the airflow which the upper and lower air in the room | chamber in which the dehumidification / humidification air cleaner 100 was installed circulates will be produced | generated. Therefore, in the above embodiment, when high air flow operation is selected as the air flow mode of the fan 50 in the circulation control, an air flow that circulates the upper and lower air in the room is generated. can do.

  By the way, in the circulation control, the air volume of the fan 50 that is selected when it is determined that the first condition or the second condition is not satisfied is the air volume that generates an air current that circulates the upper and lower air in the room. As long as it is, it is not limited to the high air volume operation of the above embodiment. Furthermore, the air volume mode of the fan 50 that is switched when it is determined that the second condition is satisfied is not limited to the standard air volume operation of the above-described embodiment, and the air volume for eliminating indoor temperature unevenness. Any operation mode corresponding to a smaller air volume may be used.

  Further, in the above embodiment, in the circulation control, if the current indoor temperature is determined to be less than 10 ° C. when the air volume mode of the fan 50 is the high air volume operation, the air volume mode of the fan 50 is the high air volume. The operation has been switched to a static air volume operation. However, in the circulation control, when the air volume mode of the fan 50 is the high air volume operation, the air volume mode of the fan 50 that is switched when it is determined that the current indoor temperature is less than 10 ° C. is higher than the high air volume operation. However, the air volume is not limited to the static air volume operation.

  The present invention can reduce the possibility of erroneously determining whether or not temperature unevenness has occurred in a room, and can execute circulation control for circulating indoor air in order to eliminate temperature unevenness. Application to a simple blower is effective.

30 Filter unit (Air purifier)
50 Fan 90 Control device 95 Indoor temperature storage unit (storage unit)
100 Dehumidifying / humidifying air cleaner (blower)
199 Temperature detector (detector)

Japanese Patent Laid-Open No. 2001-41518

Claims (7)

A blower capable of performing circulation control for eliminating indoor temperature unevenness,
A detection unit (199) for detecting the temperature in the room;
A fan (50) having a variable air volume and generating an air flow in the room;
A control unit (90) having a storage unit (95) for storing the indoor temperature detected by the detection unit;
With
During the execution of the circulation control, the control device calculates a temperature difference between the current indoor temperature detected by the detection unit and the indoor temperature stored in the storage unit more than a predetermined time ago. Calculating and switching the air volume of the fan from the first air volume to a second air volume that is smaller than the first air volume when it is continuously determined that the temperature difference is equal to or less than a predetermined temperature difference.
Blower device (100). When the current indoor temperature detected by the detection unit during execution of the circulation control is lower than a predetermined temperature, the control device changes the fan air volume from the first air volume to the first air volume. Switch to the third air volume, which is smaller than
The air blower according to claim 1. The third air volume is an air volume smaller than the second air volume.
The blower according to claim 2. The predetermined time is 10 minutes.
The air blower according to any one of claims 1 to 3. In the storage unit, the temperature in the room is stored every time within a range of 0.5 to 2 minutes.
The blower according to claim 4. When the control device determines that the temperature difference is greater than the predetermined temperature difference after switching the air flow rate of the fan from the first air flow rate to the second air flow rate during execution of the circulation control, Switching the air volume of the second air volume from the first air volume,
The air blower according to any one of claims 1 to 5. An air purifier (30) for purifying air in the air flow generated by the fan;
Further comprising
The air blower according to any one of claims 1 to 6.

Images