JP2006125741A - Humidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidifier capable of securing attachability/detachability of an evaporating pan, and detecting temperature rise of the evaporating pan. <P>SOLUTION: This air conditioner 1 having the humidifying function comprises the evaporating pan 10, a lamp heater 9, a heat receiving portion 12, and a temperature sensor 14. Water is stored in the evaporating pan 10. The lamp heater 9 heats the water from a water level. The heat receiving portion 12 receives the heat from the evaporating pan 10. The temperature sensor 14 detects a temperature of the heat receiving portion 12. A part provided with the temperature sensor 14, of the heat receiving portion 12 is located at a position lower than at least an appropriate water level of the evaporating pan 10, and close to a side portion 10a of the evaporating pan 10 with a very small clearance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a humidifier, and more particularly, to a water surface humidifier.

  Conventionally, various water surface humidification devices have been proposed. In the case of a water surface heating type humidifier, when the water in the evaporating dish is heated by the heater and all of the water is evaporated, it becomes a so-called emptying state, and the evaporating dish directly receives heat from the heater and overheats in a short time. End up. As a result, when the evaporating dish exceeds the heat resistance temperature of the resin parts that constitute the inside of the humidifying device around the evaporating dish, there is a possibility that problems such as deformation of these resin parts may occur.

Therefore, in order to prevent emptying of the evaporating dish, as described in Patent Document 1, a heat conduction plate is pressed against the outer surface of the evaporating dish fixed at a predetermined position inside the main body, and the heat conduction plate is interposed therebetween. Thus, a water surface superheated humidifier has been proposed in which the temperature rise of the evaporating dish is detected by an overtemperature detector. The overheat detector is disposed at a position higher than the standard water level.
Japanese Utility Model Publication No. 4-129043

  In order to perform maintenance work such as cleaning of the evaporating dish, the evaporating dish is preferably detachable. However, the humidifier described in Patent Document 1 has a structure in which the evaporating dish is fixed inside the main body and cannot be attached or detached. If the humidifier described in Patent Document 1 is changed to a structure in which the evaporating dish is detachable, if there is a gap between the evaporating dish and the heat conducting plate, the temperature rise of the evaporating dish is detected as an overtemperature detector. Not detected by. Moreover, if the heat conducting plate is accurately pressed against the side surface of the evaporating dish, there is a problem that the evaporating dish cannot be secured.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a humidifying device that ensures the detachability of the evaporating dish and can detect the temperature rise of the evaporating dish.

  The humidifying device of the first invention includes an evaporating dish, a heater, a heat receiving part, and a temperature detecting part. The evaporating dish stores water. The heater heats water from the water surface. The heat receiving unit receives heat from the evaporating dish. The temperature detection unit detects the temperature of the heat receiving unit. The portion of the heat receiving portion to which the temperature detection unit is attached is disposed close to the side of the evaporating dish via a minute gap at least at a position below the appropriate water level of the evaporating dish.

  Here, the portion of the heat receiving portion to which the temperature detection unit is mounted is disposed close to the side of the evaporating dish via a minute gap at least at a position below the appropriate water level of the evaporating dish. When the water level in the interior is lowered, the radiant heat generated from the side of the evaporating dish can be received by the heat receiving part. Thereby, even if the evaporating dish is not in contact with the heat receiving part, it is possible to detect an increase in the water temperature and a decrease in the water level of the evaporating dish. Moreover, even if the evaporating dish is not in contact with the heat receiving part, the temperature can be detected by the temperature detecting part, so that the detachability is easily secured.

The humidifying device of the second invention is the humidifying device of the first invention, wherein the heater is a lamp heater. The lamp heater is disposed above the evaporating dish.
Here, since the heater is a lamp heater disposed above the evaporating dish, the water can be quickly raised to the boiling temperature (so-called fast rise).

The humidifying device of the third invention is the humidifying device of the first invention or the second invention, and further includes a water shortage abnormality safety device. The water shortage abnormality safety device stops the operation of the heater when the temperature detected by the temperature detection unit exceeds a predetermined temperature.
Here, since the water shortage abnormality safety device is further provided, the operation of the heater can be stopped when the temperature detected by the temperature detection unit exceeds a predetermined temperature.

The humidifying device of the fourth invention is the humidifying device of the first invention or the second invention, wherein the temperature detection unit stops the operation of the heater when the temperature detected by the temperature detection unit exceeds a predetermined temperature. Bimetal.
Here, since the temperature detection unit is bimetal, the operation of the heater can be stopped when the temperature detected by the bimetal exceeds a predetermined temperature.

A humidifying device according to a fifth invention is the humidifying device according to any one of the first to fourth inventions, wherein the evaporating dish is detachably disposed on the main body. In addition, the humidifier further includes a contact portion. The contact portion comes into contact with the evaporating dish when the evaporating dish is mounted at an appropriate position. The contact portion extends downward from the heat receiving portion so as to be integrated with the heat receiving portion.
Here, since the contact part which contacts an evaporating dish is provided, when an evaporating dish is mounted | worn in the appropriate position, a temperature detection part can detect both the radiant heat from a heat receiving part, and the conduction heat from a contact part. . Further, even when the evaporating dish is not mounted at an appropriate position and a gap is formed between the evaporating dish and the contact portion, the temperature detecting unit can detect radiant heat from the evaporating dish.

A humidifying device according to a sixth aspect of the present invention is the humidifying device according to any one of the first to fifth aspects of the present invention, further comprising an air temperature detection unit. An air temperature detection part detects the temperature of the air containing the vapor | steam generated from an evaporating dish.
Here, since the air temperature detection unit is provided, when the temperature of the air containing the steam released to the outside rises abnormally, the increase in the air temperature can be detected by the air temperature detection unit.

The humidifying device of the seventh invention is the humidifying device of the sixth invention, further comprising an air temperature abnormality safety device. The abnormal air temperature safety device stops the operation of the heater when the temperature detected by the air temperature detector exceeds a predetermined temperature.
Here, since the air temperature abnormality safety device is provided, the operation of the heater can be stopped when the temperature detected by the air temperature detection unit exceeds a predetermined temperature.

  According to the first invention, when the water level in the evaporating dish is lowered, the heat receiving part can receive the radiant heat generated from the side part of the evaporating dish, whereby the evaporating dish is in contact with the heat receiving part. Even without this, it is possible to detect an increase in water temperature and a decrease in water level in the evaporating dish. Moreover, even if the evaporating dish is not in contact with the heat receiving part, the temperature can be detected by the temperature detecting part, so that the detachability is easily secured.

According to the second invention, water can be quickly raised to the boiling temperature.
According to the third aspect of the invention, the heater operation can be stopped when the temperature detected by the temperature detector exceeds a predetermined temperature.
According to the fourth invention, the heater operation can be stopped when the temperature detected by the bimetal exceeds the predetermined temperature.

According to the fifth aspect, when the evaporating dish is mounted at an appropriate position, the temperature detection unit can detect both the radiant heat from the heat receiving unit and the conduction heat from the contact unit. Further, even when the evaporating dish is not mounted at an appropriate position and a gap is formed between the evaporating dish and the contact portion, the temperature detecting unit can detect radiant heat from the evaporating dish.
According to the sixth aspect of the present invention, when the temperature of the air containing the vapor released to the outside rises abnormally, the rise in the air temperature can be detected by the air temperature detection unit.

  According to the seventh aspect of the present invention, the heater can be stopped when the temperature detected by the air temperature detector exceeds a predetermined temperature.

Next, the humidifying device of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a partially exploded perspective view of an air cleaner with a humidifying function as an example of a humidifying apparatus according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the humidifying unit of FIG. FIG. 3 is an exploded perspective view of the filter unit of FIG.
<Overall configuration>
The air purifier 1 with a humidifying function shown in FIGS. 1 to 3 performs indoor air cleaning and humidification, and includes a fan 20, an air purifying unit 2, and a humidifying unit 3. In this air purifier, a fan 20 shown in FIG. 3 and a filter unit 40 constituting the air purifying unit 2 are housed in a case 4. The humidifying unit 3 is attached to the back of the case 4.
<Configuration of fan 20>
As shown in FIG. 3, the fan 20 includes a fan rotor 21 and a motor 22. The fan 20 is disposed inside the case 4. The fan rotor 21 is a sirocco fan that blows wind in the centrifugal direction. Centrifugal wind generated by the fan 20 is guided upward using a fan casing (not shown) and discharged from the outlet 7 to the outside of the case 4.

<Configuration of the air cleaning unit 2>
The air cleaning unit 2 includes a filter unit 40 including a plurality of filters.
Due to the negative pressure generated by the fan 20, an opening or slit (not shown) opened in the front cover 5 that covers the front surface of the air purifier 1, and a peripheral intake port 6 formed around the front cover 5, Indoor air is introduced into the air purifier 1. The introduced air is purified by passing through the filter unit 40.
As shown in FIG. 3, the filter unit 40 includes a prefilter 41, a plasma ionization unit 42, a first photocatalytic filter 48, a second photocatalytic filter 45, an inverter lamp 47, and a third photocatalytic filter 46. It is configured. Each of these components is specifically configured as follows.

First, a pre-filter 41 for removing relatively large dust and dust is disposed on the foremost side of the filter unit 40. As the prefilter 41, a dustproof net such as a synthetic resin fiber can be employed. A plasma ionization unit 42 is disposed behind the prefilter 41. The plasma ionization unit 42 charges the particles of smoke, dust, pollen, and other dirt that have passed through the prefilter 41 by applying a strong charge, and captures the particles with a first photocatalyst filter 48, which will be described later. Increase collection efficiency. A first photocatalytic filter 48 is disposed behind the plasma ionization unit 42. The first photocatalytic filter 48 is formed by laminating an electrostatic filter 43 for adsorbing particles charged by the plasma ionization unit 42 and a titanium oxide filter 44 containing titanium oxide having a photocatalytic action. The first photocatalyst filter 48 is formed in a roll shape that includes a plurality of lengths, and is configured to be pulled out and cut a dirty portion when the surface in use is dirty. Behind the first photocatalyst filter 48, a second photocatalyst filter 45 and a third photocatalyst filter 46 made of a material containing titanium oxide are disposed. An inverter lamp 47 is disposed between the second photocatalyst filter 45 and the third photocatalyst filter 46. The inverter lamp 47 irradiates the first photocatalytic filter 48, the second photocatalytic filter 45, and the third photocatalytic filter 46 with ultraviolet rays, and activates the photocatalytic action of each photocatalytic filter.
The air that has passed through the filter unit 40 configured as described above and is purified is sucked into the fan 20 and then upwards from the air outlet 7 provided in the upper part of the case 4 shown in FIGS. Are discharged into the room.

<Configuration of humidifying unit 3>
As shown in FIGS. 1 and 2, the humidifying unit 3 includes a lamp heater 9, an evaporating dish 10, a reflecting plate 11, a heat receiving unit 12, a contact unit 13, and a temperature sensor 14 that is a temperature detecting unit, A thermal fuse 25 is provided as a main part. The steam generated in the humidifying unit 3 joins the air sent from the air cleaning unit 2, rises through the duct 26, and is discharged to the outside through the steam discharge port 30. The humidifying unit 3 is covered with a back cover 15 and a tank cover 16. The back cover 15 is removed when the evaporating dish 10 is maintained.

The lamp heater 9 is composed of a rod-shaped infrared lamp. The infrared rays emitted from the lamp heater 9 heat the water W stored in the evaporating dish 10 from the water surface to generate steam.
The evaporating dish 10 is a metal dish, for example, a dish manufactured by drawing using stainless steel or aluminum. The evaporating dish 10 is communicated with the water storage tank 17 through a connecting pipe 18. The bottom and sides of the evaporating dish 10 are covered with an evaporating dish cover 19. A heat shield 51 made of silicone resin or the like is interposed between the bottom of the evaporating dish 10 and the evaporating dish cover 19. A packing 32 that is in close contact with the lower part of the reflector cover 24 is provided on the upper edge of the evaporating dish 10. As shown in FIG. 1, the evaporating dish 10 is detachably mounted by inserting it into the space 23 below the reflector cover 24 from the back of the air cleaner 1 in the direction of arrow B shown in FIG. be able to.

  The reflection plate 11 is disposed above the lamp heater 9 and reflects infrared rays emitted from the lamp heater 9 toward the water W of the evaporating dish 10. The outside of the reflector 11 is covered with a reflector cover 24. The space closed by the reflecting plate cover 24 and the evaporating dish 10 is divided up and down by the reflecting plate 11. Therefore, a first space S1 is formed below the reflecting plate 11, and a second space S2 is formed above.

Further, on the outer surface of the reflection plate cover 24, a heat receiving portion 37 for receiving heat from the air around the reflection plate 11, a temperature detection portion 35, in order to detect the temperature of the air around the reflection plate 11 A thermal fuse 36 is provided. The heat receiving portion 37 is formed of a material having high thermal conductivity such as stainless steel. As the temperature detection unit 35, a temperature sensor or the like is employed.
A connection pipe 31 and a duct 26 are disposed above the vapor discharge port 11a formed in the reflection plate 11. Further, a light shielding plate 52 is provided above the connection pipe 31 in order to prevent infrared rays emitted from the lamp heater 9 from leaking outside through the connection pipe 31 and the duct 26.

  The heat receiving unit 12 receives radiant heat from the evaporating dish 10. In the heat receiving unit 12, the portion where the temperature detection unit (that is, the temperature sensor 14 functioning as an overtemperature detector) and the temperature fuse 25 are attached evaporates at least at a position below the appropriate water level L of the evaporating dish 10. It is arranged close to the side portion 10a of the dish 10 with a minute gap δ. The heat receiving portion 12 is formed of a material having good thermal conductivity such as stainless steel.

The contact portion 13 contacts the evaporating dish 10 when the evaporating dish 10 is mounted at an appropriate position (see FIG. 2) in the space 23 below the reflector cover 24. The contact portion 13 extends downward from the heat receiving portion 12 so as to be integrated with the heat receiving portion 12. The contact portion 13 is integrally formed with the heat receiving portion 12 using a material having good thermal conductivity such as stainless steel.
The temperature sensor 14 detects the temperature of the heat receiving unit 12, and is disposed in the vicinity of the appropriate water level L of the evaporating dish 10 and below the appropriate water level L. As the temperature sensor 14, a temperature sensor that can detect a temperature change of the evaporating dish 10 via the heat receiving unit 12 is employed.

  The temperature sensor 14 is connected to a water shortage abnormality safety device 33 (see FIG. 4) provided inside the air purifier 1. In the water breakage abnormality safety device 33, the temperature detected by the temperature sensor 14 is the heat resistance temperature of the resin parts constituting the air cleaner 1 (for example, the heat resistance temperature of the parts around the lamp heater 9 such as the evaporating dish 10 and the reflector cover 24). Control is performed to stop the operation of the lamp heater 9 when a predetermined temperature in the vicinity is exceeded.

  The thermal fuse 25 is an overheat protection component that senses the temperature rise of the heat receiving unit 12 separately from the temperature sensor 14 and interrupts the energization of the lamp heater 9. The thermal fuse 25 is disposed at a position below the temperature sensor 14, for example. The thermal fuse 25 is connected between the lamp heater 9 and the power source E. The thermal fuse 25 is blown when it becomes close to the heat resistant temperature of the resin parts constituting the air cleaner 1 (for example, the heat resistant temperature of the parts around the lamp heater 9 such as the evaporating dish 10 and the reflector cover 24). ing.

<Heater operation control for water shortage abnormality>
Since the air cleaner 1 with the humidifying function configured as described above includes the water shortage abnormality safety device 33, the lamp heater 9 is operated when the temperature detected by the temperature sensor 14 exceeds a predetermined temperature. It can be controlled to stop.
For example, as shown in the graph of FIG. 7, a case is considered in which the water W in the evaporating dish 10 evaporates and the water level is lowered, and finally the water completely evaporates and becomes in a state of running out of water. In this case, as shown by the curve S, the temperature of the steam is small and is maintained at a substantially constant temperature θ _S , so that it is difficult to detect running out of water even if the temperature of the steam is monitored. On the other hand, the temperature of the resin parts around the evaporating dish 10 rapidly increases after the water level decreases, as indicated by the curve D. At the point P ₀ , the heat resistant temperature θ _D of the resin parts (for example, the evaporating dish 10 And the heat resistance temperature of components around the lamp heater 9 such as the reflector cover 24. Therefore, as described below, the temperature is detected by the temperature sensor 14 before the temperature of the resin component reaches θ _D.

Here, when the evaporating dish 10 is mounted at an appropriate position (see FIG. 2) and the contact portion 13 is in contact with the evaporating dish 10 (curve A1), the evaporating dish 10 is mounted at an appropriate position (see FIG. 2). Without considering the contact portion 13 and the evaporating dish 10 (curve A2).
When the evaporating dish 10 is mounted at an appropriate position (curve A1), the heat receiving part 12 receives radiant heat from the side of the evaporating dish 10 and the contact part 13 directly receives the conduction heat from the evaporating dish 10. . Therefore, the temperature detected by the temperature sensor 14 rises relatively quickly. As a first stage, when the temperature sensor 14 detects the first temperature θ ₁ that is slightly lower than 100 ° C. that is the boiling temperature of the water W, the water shortage abnormality safety device 33 stops the operation of the lamp heater 9. To control.

Here, when the lamp heater 9 continues to operate due to a failure of the temperature sensor 14 or the water shortage abnormality safety device 33, the temperature further rises. When the second temperature θ ₂ , which is 100 ° C. or higher and is slightly lower than the heat-resistant temperature θ _D , is detected, the temperature fuse 25 is blown and the power supply to the lamp heater 9 is cut off.
On the other hand, when the evaporating dish 10 is not mounted at an appropriate position (curve A2), the heat receiving part 12 can receive radiant heat from the side of the evaporating dish 10, but the evaporating dish 10 and the contact part 13 are Since it is separated, the heat of conduction from the evaporating dish 10 cannot be received by the contact portion 13. In this case, the temperature detected by the temperature sensor 14 is gentler than the curve A1 even if only the radiant heat received by the heat receiving unit 12, but rises faster than the temperature rise curve D of the resin component. Therefore, as in the case of the curve A1, as a first step, when the temperature sensor 14 detects the first temperature θ ₁ , the water shortage abnormality safety device 33 controls to stop the operation of the lamp heater 9.
Further, when the lamp heater 9 continues to be operated due to a failure of the temperature sensor 14 or the water shortage abnormality safety device 33, the temperature further rises. 2 When the temperature θ ₂ is detected, the temperature fuse 25 is blown and the power supply to the lamp heater 9 is cut off.

<Operation control of heater for abnormal air temperature>
Further, in the present embodiment, the thermistor 27 that detects the temperature of the air containing the steam released to the outside is provided in the connection pipe 31 connected to the evaporating dish 10, so that the filter of the air cleaner 1 is clogged. Even if the temperature of the air containing the steam released to the outside rises abnormally due to a decrease in the air volume due to reasons such as locking the fan 20 or the like, the thermistor 27 can detect an abnormality in the air temperature.

  The thermistor 27 is connected to an air temperature abnormality safety device 34 (see FIG. 4) provided inside the air purifier 1. The air temperature abnormality safety device 34 controls to stop the operation of the lamp heater 9 when the temperature of the steam detected by the thermistor 27 exceeds a predetermined temperature. Here, the “predetermined temperature” is a temperature detected by the thermistor 27 that is set so that the steam blowing temperature blown out from the steam outlet 30 is 55 ° C. or less which is an allowable temperature that does not affect the human body. The threshold value. The threshold value of the detected temperature of the thermistor 27 is set as follows.

The detected temperature of the thermistor 27 is different from the steam blowing temperature blown out from the steam outlet 30. In particular, the steam blowing temperature tends to be lower than the temperature detected by the thermistor 27 as the amount of air sent from the fan 20 increases.
For example, the relationship between the detected temperature of the thermistor 27 and the steam blowing temperature blown out from the steam discharge port 30 will be considered with reference to the graph of FIG. Here, it is assumed that the steam blowing temperature in a normal operation state is about 45 ° C. and the allowable upper limit of the steam blowing temperature is about 55 ° C. In FIG. 8, when there is no air volume sent from the fan 20 (when the air volume is OFF), the detected temperature of the thermistor 27 is 55 ° C., which is the same temperature as the allowable upper limit value of the steam blowing temperature. As the air volume increases (curve L when the air volume is weak → curve M when the air volume is medium → transition to curve H when the air volume is strong), an allowable upper limit 55 ° C. of the steam blowing temperature The detected temperature threshold value of the thermistor 27 corresponding to is also increased, and the detected temperature threshold value of the thermistor 27 is set as θ _L , θ _M , θ _H according to the strength of each airflow. .

<Description of operation of air cleaner 1 with humidification function>
As shown in FIGS. 1 to 3, when the fan 20 is operated, the indoor air is sucked from the peripheral intake port 6 on the front surface of the air cleaner 1 by the action of the negative pressure generated by the fan 20. The sucked air is purified by passing through the filter unit 40 of the air cleaning unit 2 and is discharged to the outside from the air outlet 7 on the upper surface of the case 4. The air discharged from the air outlet 7 is blown out in the user's preferred direction by adjusting the wind direction adjusting mechanism 39.
Further, part of the air cleaned by the air cleaning unit 2 is introduced into the reflector cover 24 and the duct 26.
The air introduced into the reflector cover 24 flows in the following order. First, as shown in FIG. 2 and FIGS. 5 to 6, the air flows from the case 4 of the air purifier 1 through the communication portion 28 of the reflector cover 24 to the second space S <b> 2 (FIG. 6 arrow A21). This air flows in the second space S2 from right to left (see arrow A22 in FIG. 6). At this time, heat is removed from the reflector 11 and the air is warmed. In other words, the reflecting plate 11 is cooled. Then, the air that has reached the left end of the second space S2 goes down to the first space S1 below through the vertical communication portion 38 (see arrows A23 and A24 in FIG. 6). The air heated by the reflecting plate 11 flows from the left to the right in the first space S1 above the water W where the lamp heater 9 is disposed, and promotes the evaporation of the water W in the evaporating dish 10. And the air containing the vapor | steam which reached the right end of 1st space S1 flows into the connection pipe 31 from the vapor | steam exhaust port 11a formed in the reflecting plate 11 (refer arrow A25 of FIG. 6). When the steam-containing air ascends inside the duct 26 as shown in FIG. 5, a flow of clean air for cooling introduced into the duct 26 from the case 4 through the communication portion 29 (A26 in FIG. 2). The air containing the cooled steam is discharged to the outside through the steam discharge port 30 (see A27 in FIG. 2).
<Features of the embodiment>
(1)
In the air cleaner 1 with a humidifying function of the embodiment, a portion where the temperature sensor 14 is mounted in the heat receiving unit 12 is at least a small gap on the side of the evaporating dish 10 at a position below the appropriate water level L of the evaporating dish 10. They are arranged close to each other via δ. Therefore, when the water level of the water W inside the evaporating dish 10 is lowered, the heat receiving part 12 can receive the radiant heat generated from the side part of the evaporating dish 10. Thereby, even if the evaporating dish 10 is not in contact with the heat receiving unit 12, it is possible to detect an increase in the water temperature and a decrease in the water level of the evaporating dish 10.
(2)
In the air cleaner 1 with a humidifying function of the embodiment, the temperature can be detected by the temperature sensor 14 even when the evaporating dish 10 is not in contact with the heat receiving unit 12, so that detachability is easily ensured.
(3)
Since the air cleaner 1 with a humidifying function of the embodiment is a water surface heating type, the water temperature of the water W in the evaporating dish 10 is lower on the bottom surface than the water surface, and therefore when the water level is reduced before the water W evaporates. An increase in water temperature and a decrease in water level can be detected at an early stage.
(4)
In the air cleaner 1 with a humidifying function of the embodiment, since the evaporating dish 10 is detachably mounted, the scales attached to the evaporating dish 10 can be easily washed, and maintenance work is easy.
(5)
In the air cleaner 1 with a humidifying function of the embodiment, the temperature sensor 14 and the temperature fuse 25 are shielded from the outside by the heat receiving unit 12 even when the evaporating dish 10 is removed and the space 23 (see FIG. 1) is opened. Therefore, the user cannot see from the outside, and the hand does not touch from the outside and the measurement accuracy is not affected.
(6)
In the air cleaner 1 with a humidifying function of the embodiment, the lamp heater 9 disposed above the evaporating dish 10 is employed as a heater for heating the water surface, so that the water is quickly raised to the boiling temperature. (So-called quick start-up). Therefore, even when the operation is resumed after the lamp heater 9 is stopped, the generation of steam can be resumed early.
(7)
Since the air cleaner 1 with a humidifying function of the embodiment includes the water shortage abnormality safety device 33, the operation of the lamp heater 9 is stopped when the temperature detected by the temperature sensor 14 exceeds a predetermined temperature. Can be controlled.
(8)
Since the air cleaner 1 with the humidifying function of the embodiment includes the temperature fuse 25, the energization to the lamp heater 9 is cut off when the temperature of the heat receiving unit 12 exceeds a predetermined temperature.
(9)
In the air cleaner 1 with a humidifying function of the embodiment, the evaporating dish 10 is detachably disposed on the main body of the air cleaner 1. Moreover, the air cleaner 1 is provided with the contact part 13 which contacts the evaporating dish 10 when the evaporating dish 10 is mounted in an appropriate position. The contact portion 13 extends downward from the heat receiving portion 12 so as to be integrated with the heat receiving portion 12. Thereby, when the evaporating dish 10 is mounted at an appropriate position, the temperature sensor 14 can detect radiant heat and conduction heat. Further, even when the evaporating dish 10 is not mounted at an appropriate position and a gap is formed between the evaporating dish 10 and the contact portion 13, the temperature sensor 14 can detect radiant heat from the evaporating dish 10.
Similarly to the temperature sensor 14, the temperature fuse 25 can sense radiant heat and conduction heat when the evaporating dish 10 is mounted at an appropriate position, and a gap is formed between the evaporating dish 10 and the contact portion 13. It can detect radiant heat.
(10)
Since the air cleaner 1 with the humidifying function of the embodiment includes the thermistor 27 that detects the temperature of the air containing the steam generated from the evaporating dish 10, the filter clogging of the air cleaner 1, the fan 20 is locked, and the like. The thermistor 27 can also detect the case where the temperature of the air containing the steam released to the outside rises abnormally when the air volume is reduced for the above reason.
(11)
Since the air cleaner 1 with the humidifying function of the embodiment includes the air temperature abnormality safety device 34, the lamp is used when the temperature detected by the thermistor 27 exceeds a predetermined temperature corresponding to the allowable temperature of the steam blowing temperature. Control can be performed to stop the operation of the heater 9.

<Modification of Embodiment>
(A)
In the embodiment, the temperature sensor 14 is adopted as the temperature detection unit, and the water shortage abnormality safety device 33 controls the heater operation to stop when the temperature detected by the temperature sensor 14 exceeds a predetermined temperature. However, the present invention is not limited to this. As a modification, for example, if a bimetal is used as the temperature detection unit, the operation of the heater can be stopped when the temperature detected by the bimetal exceeds a predetermined temperature.
(B)
In the embodiment, an example is shown in which two temperature sensors 14 and two temperature fuses 25 are arranged on the upper and lower sides as the temperature detection unit, but the present invention is not limited to this, and the temperature detection unit and the temperature are not limited thereto. The number and arrangement of fuses may be arbitrarily changed.
(C)
In the embodiment, the air purifier with a humidifying function has been described as an example of the humidifying device, but the present invention is not limited to this and is also applied to a water surface heating type humidifier having no air purifying function. The present invention can be applied.

The partial disassembled perspective view of the air cleaner with a humidification function which is an example of the humidification apparatus concerning embodiment of this invention. The longitudinal cross-sectional view of the humidification part of FIG. The disassembled perspective view of the filter unit of FIG. The block diagram which shows the mechanism for controlling the driving | operation of the lamp heater of FIG. The perspective view which shows the part of the evaporating dish of FIG. 1, a reflecting plate cover, and a duct. Sectional drawing which shows the inside of the space formed with the evaporating dish and reflecting plate cover of FIG. The graph which shows the time change of the detection temperature of a temperature sensor and a thermal fuse. The graph which shows the relationship between thermistor temperature and steam blowing temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air cleaner with a humidification function 2 Air purification part 3 Humidification part 9 Lamp heater 10 Evaporating dish 12 Heat receiving part 13 Contact part 14 Temperature sensor 20 Fan 25 Temperature fuse

Claims (7)

An evaporating dish (10) for storing water;
A heater (9) for heating the water from the water surface;
A heat receiving part (12) for receiving heat from the evaporating dish (10);
A temperature detection unit (14) for detecting the temperature of the heat receiving unit (12),
The portion of the heat receiving unit (12) where the temperature detection unit (14) is mounted is a small gap in the side of the evaporating dish (10) at least at a position below the appropriate water level of the evaporating dish (10). Are placed close together,
Humidifier. The heater (9) is a lamp heater disposed above the evaporating dish (10).
The humidifier according to claim 1. A water shortage abnormality safety device (33) that stops the operation of the heater (9) when the temperature detected by the temperature detector (14) exceeds a predetermined temperature;
The humidifier according to claim 1 or 2. The temperature detector (14) is a bimetal that stops the operation of the heater (9) when the temperature detected by the temperature detector (14) exceeds a predetermined temperature.
The humidifier according to claim 1 or 2. The evaporating dish (10) is detachably disposed on the main body,
A contact portion (13) that contacts the evaporating dish (10) when the evaporating dish (10) is mounted at an appropriate position;
The contact portion (13) extends downward from the heat receiving portion (12) so as to be integrated with the heat receiving portion (12).
The humidifier according to any one of claims 1 to 4. An air temperature detector (27) for detecting the temperature of the air containing the steam generated from the evaporating dish (10),
The humidifier according to any one of claims 1 to 5. An air temperature abnormality safety device (34) that stops the operation of the heater (9) when the temperature detected by the air temperature detection unit (27) exceeds a predetermined temperature;
The humidifier according to claim 6.

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