JP4244845B2 - Electrostatic atomizer and air conditioner equipped with the same - Google Patents

Description

  The present invention relates to an electrostatic atomizer and an air conditioner equipped with the electrostatic atomizer, and more particularly to a technique for accurately determining the absence of water and the presence of water regardless of the presence or absence of disturbance to the float.

  Conventionally, as an air conditioner, a filter equipped with a filter that captures dust or dust in the air, a filter such as activated carbon that adsorbs odor molecules, or a device that performs deodorization using electrostatic atomization technology is known. (For example, refer to Patent Document 1). Here, electrostatic atomization means that a high voltage is applied between a counter electrode and a liquid such as water held by a transport unit made of a porous material such as ceramic, and the tip of the transport unit is caused by capillary action. This is a phenomenon in which the water transported to the side is atomized toward the counter electrode.

  By the way, in the conventional electrostatic atomizer, the following points are problems. For an electrostatic atomizer that atomizes water, it is necessary to provide some means for detecting the water level in the water reservoir.

Therefore, the present inventors considered a detection method using a float with a magnet and a reed switch in the process leading to the present invention. This is because the magnet accommodated in the float moves up and down in accordance with the change in the liquid level, and the distance between the magnet and the reed switch changes, so the magnetic field generated from the magnet also changes. And it becomes possible to detect the absence of water or the presence of water by the change of the magnetic field. However, if a reed switch used to detect the water level in the water reservoir is attached to the tank case, the float will move up and down due to product shakes, disturbances, etc. This causes a problem that erroneous determination is caused.
JP-A-5-345156

  The present invention was invented in view of the above-described conventional problems, and a reed switch for detecting a float with a magnet in a water reservoir is installed in a main body side tank case to which an electrostatic atomizer is detachable. Provide an electrostatic atomizer and an air conditioner equipped with the electrostatic atomizer that can accurately determine whether there is no water or no water regardless of how the product is used or whether there is a disturbance to the float. It is an object to do.

  In order to solve the above problems, in the electrostatic atomizer according to the present invention, the water reservoir 1 that stores water W, and the front end side of the water reservoir 1 that is located outside the water reservoir 1 A porous transport section 2 transported to the transport section, a counter electrode 3 arranged to face the transport section 2, and a voltage application section 5 for applying a high voltage between the transport section 2 and the counter electrode 3. Then, by applying a high voltage between the transport unit 2 and the counter electrode 3, the electrostatic atomization unit 6 in which the water W of the transport unit 2 atomizes to generate mist, and the electrostatic atomization unit 6. Is generated from the float 12 with a magnet 13 that floats and sinks in accordance with the water level of the water reservoir 1 and the magnet 13 of the float 12. A reed switch 15 for detecting the water level in the water reservoir 1 in response to a magnetic field, and a reed A control circuit 51 to which an H signal or an L signal is input according to the distance t between the switch 15 and the float 12 is provided. The control circuit 51 determines whether water is present or not based on the input signal. The fixed time to be fixed in advance is set in advance, and the fixed time is composed of an initial fixed time T1 set in the initial stage of operation and a normal fixed time T2 set longer than the initial fixed time T1. It is characterized by having a mode switching means 55 for switching from the setting mode of the initial fixed time T1 to the setting mode of the normal fixed time T2 after elapses.

  By adopting such a configuration, a fixed time for determining and confirming the state of water presence or absence from the signal input to the control circuit 51 is set in advance. Even when vibrations and impacts are externally applied from the environment, it is possible to give a sense of security and reliability to the user as a result of not causing false detection caused by it. In addition, since the initial fixed time T1 set in the initial stage of operation is shorter than the normal fixed time T2, it is possible to quickly determine after the reset start or maintenance such as water replenishment and notify the user promptly. In addition, it is possible to eliminate a problem that seems to be a failure of the detection device such as the float 12. Further, after the initial fixed time T1 has elapsed, the mode is automatically switched from the initial fixed time T1 setting mode to the normal fixed time T2 setting mode, so that the user does not need to perform a special switching operation and can realize a comfortable operation. At the same time, reliable determination of the absence of water during normal operation is performed.

  In addition, the control circuit 51 preferably determines when the signals input within the fixed time are continuously matched. In this case, for example, the signal acquisition is performed with the initial fixed time T1 (or the normal fixed time). Perform a predetermined number of times within T2), ignore the signal information when a different signal is input even once, take in the signal again, and confirm the detection result when the signals match continuously. Therefore, it is possible to prevent erroneous determination due to H and L of the signal due to the vertical movement specific to the detection method by the float 12, and it is possible to increase detection accuracy.

  In addition, the control circuit 51 preferably notifies after a predetermined time has elapsed from the confirmation. In this case, since there is a certain distance t between the float 12 and the reed switch 15, there is no water in a state where some water W remains. If the user is notified in this state, there is a possibility of misunderstanding by notifying that there is no water W although there is some water W. Therefore, it is not notified immediately when it is confirmed, but when a certain amount of time elapses due to the decrease in water W due to electrostatic atomization and natural evaporation, and when the time when water W runs out (expected time) surely elapses. By adopting a notification system that performs the operation, the user can be notified with almost no water W.

  In addition, the air conditioner according to the present invention includes the electrostatic atomizer 40 having the above-described configuration, and a blower including the fan 23 and the wind tunnel 24 driven by the motor 22, and is sucked from the suction port 25. An air conditioner 21 that filters air through the filter unit 26 and then releases the air to the outside from the discharge port 27. The air conditioner 21 outputs a predetermined time from the determination to notification according to the air volume fluctuation per unit time from the blower. It is characterized by being variable.

  With such a configuration, when the wind is blown by the fan 23 and the electrostatic atomizer 40 is blown and discharged outside, the evaporation amount of the water W or the natural evaporation amount due to the electrostatic atomization is discharged. Since it changes depending on the wind, it is incorporated in the air conditioner 21 by making the time (estimated time) from confirmation to notification variable according to the air volume fluctuation per unit time from the blower. The user can be notified in a state where the water W of the electrostatic atomizer 40 is almost completely removed.

  In the electrostatic atomizer according to the present invention, when a reed switch for detecting a float with a magnet in the water reservoir is installed in the main body side tank case to which the electrostatic atomizer is detachable, Regardless of how the water is used and whether there is a disturbance to the float, it is possible to accurately determine the absence of water and the presence of water.

  In the air conditioner according to the present invention, there is provided an electrostatic atomizer capable of accurately determining the absence of water and the presence of water regardless of how the product is used or whether there is a disturbance to the float. Even if the evaporation amount of water by electrostatic atomization or the natural evaporation amount is changed by the wind, it is possible to change the time (estimated time) until it is notified after it is confirmed. It is possible to notify the user when the water in the gasifier is almost completely removed.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The electrostatic atomizer 40 of this embodiment is comprised with the main body side tank case 18 which accommodates the electrostatic atomizer 6 and the electrostatic atomizer 6 detachably, as shown in FIGS. 1-3. Has been. The electrostatic atomization unit 6 is opposed to the water reservoir 1 that stores the water W, the porous transport unit 2 that transports the water W from the water reservoir 1, and the transport direction of the water W by the transport unit 2. A counter electrode 3 disposed; and a voltage application unit 5 that applies a high voltage between the transport unit 2 and the counter electrode 3, and a high voltage is applied between the transport unit 2 and the counter electrode 3. As a result, the water W of the transport unit 2 is atomized to generate mist. Further, a float 12 with a magnet 13 that floats and sinks in accordance with the water level of the water reservoir 1 is housed in the water reservoir 1, while a magnetic field generated from the magnet 13 of the float 12 is on the outer surface side of the main body side tank case 18. A reed switch 15 that detects the water level in the water reservoir 1 in response to the above is installed.

  In the example of FIG. 2, the electrostatic atomizer 6 is provided with the water reservoir 1 at the lower part, and is arranged in a cylindrical shape with a holder 8 having a ventilation hole 7 on the peripheral surface and an upper part of the holder 8. The counter electrode 3, the application electrode 4 that is fitted in the lower part of the holder 8 and applies a voltage to the water W, and the plurality of rod-shaped water absorbers 2 a that constitute the transport unit 2 held by the application electrode 4. The protrusion on the outer surface of the upper end opening edge of the water reservoir 1 formed in a cup shape is provided, for example, on the outer peripheral flange portion of the application electrode 4 attached to the lower portion of the holder 8. It is attached by engaging the bayonet in the engaging recess.

  The counter electrode 3 and the application electrode 4 are both made of a synthetic resin mixed with a conductive material such as carbon or a metal such as SUS, and have conductivity. The electrode 3 is grounded through a grounding contact plate that contacts the outer surface of the connecting projection formed on the outer peripheral surface thereof. Similarly, the applied electrode 4 that is fitted and fixed in the lower part of the holder 8 and is fixed by pressing the rib on the inner surface of the holder 8 is also subjected to a high voltage via a contact plate that contacts the outer surface of the connecting projection formed on the outer peripheral surface thereof. It is connected to the voltage application part 5 to apply.

  The rod-shaped water absorber 2a has a needle-like top, and a plurality of rod-shaped water absorbers 2a in the example of FIG. These rod-shaped water absorbers 2a are arranged on the same circumference at equal intervals, the upper part protrudes upward from the application electrode 4, and the lower part protrudes downward to come into contact with the water W placed in the water reservoir 1. .

  In FIG. 1 and FIG. 2B, reference numeral 10 denotes a cylindrical skirt projecting downward from the application electrode 4 and surrounds the outside of the plurality of rod-shaped water absorbers 2a, and the lower end thereof is a rod-shaped water absorber 2a. The lower end opening is covered with a lattice-like lattice-shaped protective cover 11. The skirt 10 in the application electrode 4 applies a high voltage to the water W by coming into contact with the water W placed in the water reservoir 1, and at the same time, the rod-shaped water absorption formed of ceramic together with the lattice-shaped protective cover 11. The body 2a is protected.

  On the other hand, the counter electrode 3 mounted so as to close the upper opening of the holder 8 has an opening 16 in the center as shown in FIG. 2A, and the edge of the opening 16 is viewed from above. A plurality of arcs R having the same diameter centered on the needle-like portion 2b at the upper end of the plurality of rod-shaped water absorbent bodies 2a are smoothly connected by other arcs r. The counter electrode 3 is grounded, the voltage application unit 5 is connected to the application electrode 4, and when the rod-shaped water absorber 2a sucks up water W by capillary action, the needle-like portion 2b at the upper end of the rod-shaped water absorber 2a is applied to the application electrode. The arc R of the counter electrode 3 functions as a substantial electrode and functions as a substantial electrode on the side 4, and the counter electrode 3 and the tip of the rod-shaped water absorber 2 a constituting the transport unit 2 that transports the water W. In this case, a high voltage is applied. The opening 16 is covered with a lattice-shaped protective cover 17, thereby preventing fingers and the like from coming into contact with the rod-shaped water absorbent body 2 a through the opening 16.

  FIG. 3 shows a principle diagram of the electrostatic atomizer 6. Now, the water reservoir 1 containing the water W is mounted, and the water W is brought into contact with the skirt 10 of the application electrode 4. At the same time, the rod-like water absorbent body 2 a sucks up the water W by capillary action, and further the counter electrode 3 is attached. When the voltage application part 5 which becomes a high voltage generation source is connected to the application electrode 4 and a negative voltage is applied to the application electrode 4 while being grounded, the tip of the rod-shaped water absorber 2a constituting the transport part 2 and the counter electrode 3 In this case, a high voltage is applied. If this voltage is a high voltage that can cause the water W to undergo Rayleigh splitting, the water W that has reached the needle-like portion 2b at the upper end of the rod-shaped water absorbing body 2a will cause the Rayleigh splitting to have a nanometer-sized particle diameter. Electrostatic atomization that causes atomization to be mist M is performed.

  Here, the first feature of the present invention is a water level detection system including a float 12 with a magnet 13 and a reed switch 15, and the second feature is attributed to a case where vibration or impact is applied disturbanceally. In the control system to avoid causing false detections. These will be described in order.

  First, as an example of the first feature, as shown in FIG. 1, a float 12 is disposed inside the application electrode 4, and a magnet 13 is fixed in the float 12. The specific gravity of the entire float 12 with the magnet 13 is set to be smaller than the specific gravity 1 of the water W, so that it floats and sinks according to the water level of the water reservoir 1. Further, a through hole 12a is provided in the center of the float 12, and by passing a rod-shaped guide pin 14 through the through hole 12a, stable sliding in the vertical direction is possible.

  In this example, the float 12 has a vertical cylindrical shape, and a magnet 13 is fixed therein. In FIG. 4, the magnet 13 is magnetized in the radial direction of the float 12 (lateral direction in the figure). The magnet 13 is magnetized in the direction of the vertical axis N (the vertical direction in the figure) of the float 12. Incidentally, in the case of FIG. 4, when the float 12 rotates around the vertical axis N as indicated by the arrow “a”, the direction of the magnetic field changes, and there may be a portion where the reed switch 15 does not react. In this case, it is necessary to separately provide a member for preventing rotation of the float 12 and positioning, and in this case, there is a problem that the slidability of the float 12 is deteriorated. Therefore, as shown in FIG. 5, it is preferable to magnetize in the direction of the vertical axis N of the float 12, and in this case, the direction of the magnetic field does not change even if the float 12 rotates about the vertical axis N. A member for preventing rotation is not necessary, and a stable detection range can be secured.

  On the other hand, the reed switch 15 includes a pair of lead pieces 50A and 50B. When the magnet 13 comes close to the abutting portion of the lead pieces 50A and 50B, two opposing facing electrodes repeat the electrical opening / closing operation. Contact portions 50a and 50b are provided, and each contact portion 50a and 50b is sealed with a glass tube 50c. As shown in FIG. 1, the reed switch 15 is fixed by a holding portion 56 provided at the center of the lower surface outside the main body side tank case 18, and when the water W in the water reservoir 1 is large, the float 12 Is floating, the contact portions 50a and 50b are turned off. When the water W is low, the float 12 sinks, and the contact portions 50a and 50b are turned on. Thereby, the water level in the water reservoir 1 can be detected.

  According to the above configuration, in the electrostatic atomizer 40 in which the electrostatic atomizer 6 is detachable from the main body side tank case 18, the reed switch 15 is installed in the main body side tank case 18. At this time, the reed switch 15 may be installed inside the main body side tank case 18, however, water leakage or dirt due to water leakage from the water reservoir 1, or damage caused by human contact may occur. Therefore, the above problem can be solved by providing the reed switch 15 in a place where a person outside the main body side tank case 18 cannot touch. That is, by providing the reed switch 15 that reacts to the magnetic field generated from the magnet 13 of the float 12 on the outside of the main body side tank case 18, the reed is caused by water leakage or dirt due to liquid leakage from the water reservoir 1 or by human touch. An effect of preventing the switch 15 from being damaged can be obtained.

  Next, the draft surface at which the float 12 starts to float starts from a position slightly lowered from the upper surface of the float 12, so that the float 12 sinks despite a certain amount of water W remaining in the water reservoir 1. That is, even when the float 12 is sinked, the water W remains for the vertical distance from the lowermost part of the float 12 to the water surface, so that a little water W is accumulated at the bottom of the water reservoir 1. Therefore, in the present invention, a recess 57 is provided in the bottom 1 a of the water reservoir 1 so that the float 12 can move to a position lower than the bottom 1 a of the water reservoir 1. In this example, the size of the recess 57 is slightly larger than that of the float 12, and is formed so that most of the float 12 can enter. Thereby, the float 12 can move to a position lower than the bottom 1a of the water reservoir 1, and when the float 12 is submerged in the recess 57, the water W in the water reservoir 1 is hardly left. Therefore, it is possible to use the water W in the water reservoir 1 to the last while leaving almost no water W. In addition, there is an advantage that it is possible to avoid erroneous notification that there is no water even though there is some water W.

  Next, when the electrostatic atomizer 6 is installed in the main body side tank case 18, the distance t between the float 12 and the reed switch 15 changes if it is not installed correctly, and cannot be detected correctly. Therefore, in this example, a detection switch 20 such as a limit switch is disposed inside the main body side tank case 18, and it is confirmed that the electrostatic atomizer 6 is correctly installed by the output from the detection switch 20. I am trying to inform you. The notification may be any system such as voice or light.

  Next, the second feature of the present invention is shown in FIGS. An H signal or an L signal is input to the control circuit 51 depending on the distance t between the reed switch 15 and the float 12 shown in FIG. Here, the H signal is input to the control circuit 51 when the reed switch 15 is turned on. However, depending on the circuit configuration, the L signal is input to the control circuit 51 when the reed switch 15 is turned on. You can also. In the following example, the case where the H signal is output when there is no water and the L signal is output when there is water will be described.

  In the control circuit 51 constituted by a microcomputer, a determination time is set in advance for determining and determining either the presence or absence of water from the input signal. This fixed time includes an initial fixed time T1 set in the initial stage of operation and a normal fixed time T2 (> T1) set longer than the initial fixed time T1. Further, it has mode switching means 55 for switching from the setting mode of the initial determination time T1 to the setting mode of the normal determination time T2 after the initial determination time T1 has elapsed. The mode switching means 55 includes, for example, a switching circuit that automatically switches from the setting mode of the initial determination time T1 to the setting mode of the normal determination time T2 after notifying the user by initial determination. Alternatively, a timer circuit or a counting means for measuring the time from the initial stage of operation and switching from the setting mode of the initial fixed time T1 to the setting mode of the normal fixed time T2 after a predetermined time elapses may be mentioned.

  Next, an example of what signals are input to the control circuit 51 according to the distance relationship between the float 12 and the reed switch 15 will be described. 10A shows an example of the configuration of the control circuit 51, FIG. 10B shows an example of a signal waveform input to the control circuit 51, and FIG. 11 is a block diagram related to the control circuit 51. As shown in FIG. 9A, when the distance t between the float 12 and the reed switch 15 is closer than the set distance, the reed switch 15 is turned on and an H signal is input to the control circuit 51. This is the time when there is no water W. As shown in FIG. 9B, when the distance t between the float 12 and the reed switch 15 is longer, the reed switch 15 is turned off and the L signal is input to the control circuit 51. This is the time when there is water W.

  Here, it is determined by the control circuit 51 whether water is present or not. For example, as shown in the microcomputer input waveform of FIG. 10B, when the H signal is input to the control circuit 51 during the normal determination time T2, it is determined that there is no water W. However, on the other hand, when water W is replenished at the start of product resetting or when the water W runs out, if the fixed time during normal operation is set to T2 as described above, the user is anxious. May give. This is because, during normal operation, the float 12 moves up and down due to product shakes, disturbances, etc., and there are factors such as repetition of the H and L signals. Need to be long to some extent. However, if it is not decided early at the start of resetting or after maintenance such as water replenishment, a user or the like may think that the detection device such as the reed switch 15 or the float 12 is faulty. For this reason, the fixed time during normal operation is set as the normal fixed time T2, and the initial fixed time T1 is used when it is necessary to notify the user early in the operation such as at the start of resetting or during maintenance such as water supply.

  The case of water replenishment will be described as an example. When the front panel 29 in FIG. 6 is opened, the limit switch 53 (FIG. 11) is turned OFF, and the electrostatic atomization installed in the main body side tank case 18 in this state. The portion 6 is taken out, water W is replenished, the electrostatic atomizer 6 is re-installed in the main body side tank case 18, and when the front panel 29 is closed, the limit switch 53 is turned on, and the initial fixed time T1 setting mode Thus, a state with water is detected in a short time, and the user is quickly notified. After that, the mode is switched to the setting mode of the normal fixed time T2 longer than the initial fixed time T1, and the water during normal operation is set. It is possible to reliably determine the absence or presence of water. The notification means 52 (FIG. 11) for the user is not particularly limited, and any method such as voice or light may be used.

  Accordingly, by setting in advance a fixed time for determining and confirming either the presence or absence of water from the signal input to the control circuit 51, the float 12 is subjected to vibrations and shocks from its surrounding environment. Even when a disturbance is applied, erroneous detection caused by the occurrence of the disturbance is not caused, and accurate notification can always be performed, so that a sense of security and reliability can be given to the user. In addition, since the initial fixed time T1 set in the initial stage of operation is shorter than the normal fixed time T2, it is possible to quickly determine after the reset start or maintenance such as water replenishment and notify the user promptly. It is possible to eliminate the possibility of a failure of the detection device such as the float 12. Further, after the initial fixed time T1 has elapsed, the mode is automatically switched from the initial fixed time T1 setting mode to the normal fixed time T2 setting mode, so that the user does not need to perform a special switching operation and can realize a comfortable operation. At the same time, reliable determination of the absence of water is performed.

  In the above determination method, since the float 12 easily moves up and down due to disturbance, the H signal and the L signal may be alternately input from the reed switch 15. For example, when the product is carried nearby, the float 12 may move up and down because the product shakes when it is carried. As a method for avoiding this, the determination may be made only when the H signal or the L signal input to the control circuit 51 within the fixed time is continuously matched. As an example, signal acquisition is performed at an initial confirmation time T1 every 500 msec, and when H or L is detected four times in succession, the detection result is confirmed. However, if the H signal is input 3 times and the L signal is input once during the first 500 msec, this signal information is ignored, and 4 times of 500 msec are input again. The initial determination time T1 is updated until H or L is detected four times in succession, and the detection result is determined when H or L is detected four times in succession. By doing so, it is possible to prevent erroneous determination due to H and L of the signal due to the vertical movement specific to the detection method by the float 12.

  As described above, the time for determining the H signal or the L signal is determined only when the signals are continuously matched, and the signal change due to the case where the signals are not continuously matched is ignored to prevent erroneous determination of the signal due to disturbance or the like. Can do.

  By the way, when the float 12 and the reed switch 15 as shown above are closer than a set distance t, an H signal is input to the control circuit 51, and is determined by the initial determination time T1 or the normal determination time T2, Although it is determined that there is no water, since there is a certain distance t between the float 12 and the reed switch 15 (the reed switch 15 is turned on between 0 and t), it can be determined that there is no water when some water W remains. is there. If the user is notified in this state, there is a possibility of misunderstanding by notifying that there is no water W although there is some water W.

  In order to prevent this, it is preferable to notify when a predetermined time has elapsed after being determined by the determined time. That is, immediately after the control circuit 51 determines that there is no water W, no notification is made immediately, and it is expected that a certain amount of time will elapse due to the decrease in the water W due to electrostatic atomization and natural evaporation, and the water W is surely lost. A notification system that notifies when time (expected time) has elapsed is adopted. Thereby, it is possible to notify the user in a state where the water W has almost completely disappeared, and misunderstanding of the user can be avoided.

  As another example, a temperature thermistor that can measure the outside air temperature is provided on the main body side, and the evaporation amount and natural evaporation amount due to electrostatic atomization also change depending on the temperature, so when the temperature is high according to the information from the temperature thermistor, the control circuit After the determination of no water at 51, a relatively early stage is notified. On the other hand, when the temperature is low, the evaporation amount and the natural evaporation amount due to electrostatic atomization are small. It becomes possible to notify later than when the temperature is high.

  If the float 12 and the reed switch 15 are broken, the signal input to the control circuit 51 may be fixed to either H or L. In such a case, the time can be set, and if it always becomes H or L for a certain time, it is determined that the float 12 and the reed switch 15 are out of order, and can be notified. This makes it possible to accurately grasp failures such as malfunctions.

  Next, an example of the air conditioner 21 provided with the electrostatic atomizer 40 having the above configuration will be described. As shown in FIGS. 6 to 8, the air conditioner 21 includes a blower including a fan 23 driven by a motor 22 and a wind tunnel 24, and the air sucked from the suction port 25 on the back surface is filtered 26. After being filtered, the gas is discharged from the discharge port 27 to the outside. In this example, in addition to the path for sucking air from the suction port 25 from the front surface of the fan 23, a bypass path for bypassing the outer peripheral portion of the fan 23 and sucking it from the back surface of the fan 23 is provided. Further, an electrostatic atomizer 40 is disposed in the air flow path 28 from the suction port 25 to the discharge port 27 in the air conditioner 21. A front panel 29 for fixing the electrostatic atomizer 40 in a predetermined position is detachably attached to the front opening of the air conditioner 21. In this example, the electrostatic atomizer 40 can be fixed at a predetermined position by the rib 30 protruding from the back surface of the front panel 29 pressing the electrostatic atomizer 40 from above with the front panel 29 installed. It is like that.

  As a result, nanometer-sized charged mist generated by electrostatic atomization from inside the air conditioner 21 is generated, and air deodorization and the like are performed more effectively. When the atomizing unit 6 is taken out, the reed switch 15 is installed at a place on the outer surface of the main body side tank case 18 that cannot be touched by a person. The effect which can prevent 15 damage is acquired. In addition, the electrostatic atomizer 40 can be fixed at a predetermined position in the air conditioner 21 using the front panel 29 simply by fitting the front panel 29 into the front opening of the air conditioner 21. It is not necessary to separately provide a dedicated part for fixing the gasification device 40 in the air conditioner 21, and the structure can be prevented from becoming complicated.

  Moreover, the case where the alerting | reporting system which opens predetermined time (expected time) from confirmation to alerting | reporting as mentioned above is applied to this air conditioner 21 is demonstrated. For example, wind is blown by the fan 23 of FIG. 8 and the electrostatic atomizer 40 is blown and discharged outside. Therefore, the evaporation amount of the water W or the natural evaporation amount due to electrostatic atomization also changes depending on the wind. Come. Therefore, according to the air volume fluctuation per unit time from the blower, it is possible to notify the user surely and accurately by making the time (estimated time) from confirmation to notification variable. For example, an air volume sensor that detects the air volume from the blower is provided, and when the air volume per unit time is lower than the reference value, the expected time is increased, and when the air volume per unit time is higher than the reference value, the expected time It is possible to notify the user in a state where the water W has completely disappeared.

It is a sectional side view of the electrostatic atomizer provided with the electrostatic atomizer and main body side tank case which show one Embodiment of this invention. (A) is a top view of the electrostatic atomization part same as the above, (b) is a sectional side view. It is a principle figure explaining the principle which generates nanosize mist by electrostatic atomization same as the above. It is a principle figure of the magnet and reed switch magnetized in the radial direction of the float same as the above. It is a principle figure of the magnet and reed switch magnetized in the vertical axis direction of the float same as the above. It is a perspective view of the air conditioner provided with the electrostatic atomizer same as the above. It is a perspective view of the state which removed the front panel of the air conditioner same as the above. It is a sectional side view of an air conditioner same as the above. (A) is explanatory drawing explaining the state without water where the distance of a magnet and reed switch same as the above is short, (b) is explanatory drawing explaining the state with water where the distance between same magnet and reed switch becomes long. is there. (A) is a block diagram of the control circuit same as the above, (b) is an explanatory diagram of an example of a signal waveform input to the control circuit. It is a block diagram relevant to the control circuit same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water reservoir part 1a Bottom part 2 Conveyance part 3 Counter electrode 5 Voltage application part 6 Electrostatic atomization part 12 Float 13 Magnet 15 Reed switch 18 Main body side tank case 20 Detection switch 21 Air conditioner 22 Motor 23 Fan 24 Wind tunnel 25 Inlet 26 Filter section 27 Discharge port 28 Air flow path 29 Front panel 40 Electrostatic atomizer 51 Control circuit 55 Mode switching means 57 Recess M Vertical axis T1 Initial determination time T2 Normal determination time t Distance between float and reed switch W Water

Claims (4)

  A water reservoir for storing water, a porous transport unit for transporting the water in the water reservoir to the tip side located outside the water reservoir, a counter electrode arranged to face the transport unit, and a transport unit And a voltage applying unit that applies a high voltage between the counter electrode and the counter electrode, and applying a high voltage between the transport unit and the counter electrode causes the water in the transport unit to atomize and generate mist. An electrostatic atomizer including an electroatomizer and a main body side tank case that detachably stores the electrostatic atomizer, and a float with a magnet that floats and sinks according to the water level of the water reservoir, A reed switch that detects the water level in the water reservoir in response to a magnetic field generated from a magnet of the float, and a control circuit that receives an H signal or an L signal depending on the distance between the reed switch and the float. There is water from the input signal A fixed time for determining any state without water is determined in advance, and the fixed time includes an initial fixed time set at the initial stage of operation and a normal fixed time set longer than the initial fixed time. And an electrostatic atomizer characterized by comprising mode switching means for switching from the initial fixed time setting mode to the normal fixed time setting mode after the initial fixed time has elapsed.   The electrostatic atomizer according to claim 1, wherein the control circuit determines when the signals input within the determination time continuously match.   The electrostatic atomizer according to claim 1, wherein the control circuit notifies after a predetermined time has elapsed since the determination. An electrostatic atomizer according to any one of claims 1 to 3, a fan driven by a motor and a blower comprising a wind tunnel, and after filtering air sucked from a suction port through a filter unit, a discharge port An air conditioner that is discharged to the outside, wherein the predetermined time from confirmation to notification according to claim 3 is made variable in accordance with a change in air volume per unit time from the blower. Machine.

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