JP2002357343A - Bathroom air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem with a prior art that external appearance is bad because a blow-off outlet is provided on the side of an air fan in the direction of air being blown off and a damper for opening and closing the blow-off outlet is rockably provided, a body is extended in itself and is hence large-sized, and further an opening surface of a ceiling is increased in response to the body and a decorative frame provided to cover the opening surface is also large-sized. SOLUTION: An air fan is provided in a body and a heater is provided at a blow-off outlet, and damper is mounted in the body in such a manner as to be swung to a flow diversion position where air blown off with the air fan is discharged from both the blow-off outlet and a vent hole, a first position where the air is discharged only from the vent hole, and a second position where the air is discharged only from the blow-off outlet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom air conditioner installed on a ceiling or the like of a bathroom for performing air conditioning such as ventilation, heating and drying in the bathroom.

[0002]

2. Description of the Related Art The following is a detailed description of what has heretofore been found in JP-A-9-112992. A circulating fan for circulating the air in the bathroom, and an electric heater as a heating means for heating the circulating air, and a ventilation fan for discharging the air in the bathroom to the outside are provided. As means for detecting an abnormality of each device in a bathroom air conditioner that performs air conditioning such as ventilation, heating, and drying in a bathroom, a circulating fan, a ventilation fan, and a heater are determined based on respective detection signals to determine whether an abnormality is present. When it is determined that there is an abnormality, the respective devices such as the circulation fan, the ventilation fan and the heater are stopped.

FIG. 3 is a flowchart showing control means according to the prior art. As means for detecting an abnormality of the device, it is determined whether or not an abnormality is present based on detection signals of the circulation fan 21, the ventilation fan 22, and the heater 23, and control is performed when the abnormality is determined. If abnormality is detected in the circulation fan 21, the energization of the circulation fan 21 is stopped. If an abnormality is detected in the ventilation fan 22, the power supply to the ventilation fan 22 is stopped. If an abnormality is detected in the heater 23, the heater 2
The energization of 3 is stopped. In addition, as a general control means, a temperature fuse and a current fuse are attached to control the fusing to stop the respective devices.

[0004]

Problems to be Solved by the Invention Japanese Patent Laid-Open No. 9-11299
In the control means of No. 2, for example, in the case of an energized state in which the heater for heating the circulating air cannot be controlled due to the occurrence of relay sticking, if the circulating fan is stopped, the heat of the heater to be heated in the bathroom air conditioner is trapped, Abnormal heat generation may be caused.

[0005] As a control method using a thermal fuse or a current fuse as another general safety device, the number of components increases, so that a control means that is not so often used to make a bathroom air conditioner a compact product is required. is there.

[0006] The term "fixed relay" as used herein refers to a case where a device that opens and closes an electric circuit by an electric signal is always energized for some reason.

[0007] The lock means that, for example, dust or the like is entangled in the operation even though the circulation fan for circulating the air in the bathroom or the ventilation fan for discharging the air in the bathroom to the outside is energized. This is the case where it stops completely.

Here, the rotation speed abnormality is a case where the rotation speed of the motor of the circulating fan is higher than or less than a certain fixed number with respect to the set rotation speed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a bathroom air conditioner capable of safely and reliably controlling any abnormality of each device without increasing cost. Is to provide.

[0010]

According to a first aspect of the present invention, there is provided an air conditioner installed on a ceiling or the like of a bathroom for discharging air in the bathroom to the outside and air heated by a heating means. In a bathroom air conditioner that circulates air into the bathroom to perform air conditioning, a cooling unit that cools the heating unit is provided. The heating means of the present invention may be any means as long as the air can be heated by a hot water system, a gas system, an electric system, or the like.However, when heat is generated due to some abnormality during heating, abnormal heating is performed by cooling the heating unit. It has the effect of preventing a possible fire from a fire or a disaster from a fire caused by a fire. In the case of electric heating means, a constant temperature P
It is even better to use one having TC characteristics. As the cooling means at this time, it is best to use means capable of rapidly cooling the heating means such as water, a digestive agent and the like. still,
As means for detecting the abnormality, it is determined whether or not there is an abnormality based on a detection signal of the heating means, and control is performed when the abnormality is determined.

In the second invention, a ventilation fan is provided as the air conditioner for discharging the air in the bathroom to the outside, a circulation fan is provided as the air conditioner for circulating the air in the bathroom, and the circulating air is heated. A heater is provided as a heating means, and when an abnormality occurs during energization of the heater, at least one or more of the fans are turned. If the heater generates heat due to any abnormality, the fan can be cooled by forcibly discharging the heat retained in the circulation air passage in the bathroom air conditioner by turning the fan, and the possible ignition from abnormal heat, It has the effect of preventing disasters from fires caused by ignition. Since the members in the component configuration are used as the cooling means, unnecessary costs can be saved. As means for detecting the abnormality,
It is determined whether or not there is an abnormality based on the detection signal of the heater, and control is performed when the abnormality is determined.

In the third invention, when an abnormality occurs during energization of the heater, the energization of the heater is stopped and the circulation fan is turned. When the heater generates heat due to some abnormality, the heater is de-energized, and the circulation fan is rotated to forcibly discharge the heat accumulated in the circulation air path in the bathroom air conditioner, thereby cooling the heater. It has the effect of preventing a disaster from a fire caused by ignition or ignition that can occur due to abnormal heat generation. Since the cooling means is operated by using a circulation fan which is a member in the component configuration, it is possible to avoid unnecessary costs. As means for detecting the abnormality, it is determined whether or not there is an abnormality based on the detection signals of the heater and the circulation fan, and control is performed when the abnormality is determined.

In the fourth invention, when an abnormality occurs during energization of the heater, energization of the heater and the ventilation fan is stopped, and the circulation fan is rotated. In the case of an energized state where the relay cannot be controlled due to the occurrence of a relay sticking abnormality in the heater, in the case of a plurality of simultaneous troubles in which the ventilation fan is locked, or in the event of an abnormality in the heater, the ventilation fan in the peripheral portion is also damaged. In the event of an abnormality, the energization of the heater and the ventilation fan is stopped, and the circulation fan is rotated to forcibly discharge the heat accumulated in the circulation air passage in the bathroom air conditioner, thereby cooling the heater. It has the effect of preventing fire from occurring due to abnormal heat generation and disaster from fire caused by ignition. Since the members in the component configuration are used as the cooling means, unnecessary costs can be saved. As means for detecting the abnormality, it is determined whether or not there is an abnormality based on detection signals of the heater and the ventilation fan, and control is performed when the abnormality is determined.

In the fifth invention, when an abnormality occurs during energization of the heater, the energization of the heater is stopped and the ventilation fan is operated. When the heater generates heat due to some abnormality, the heater is stopped and the ventilation fan is turned on, the heat remaining in the circulation air passage in the bathroom air conditioner, and the heater may be forcibly cooled. It has the effect of preventing fires that could occur from abnormal heat generation and disasters from fires caused by ignition. Since the cooling means is operated by using a ventilation fan which is a member in the component configuration, the cost can be reduced more than necessary.
As means for detecting the abnormality, it is determined whether or not there is an abnormality based on the detection signal of the heater, and control is performed when it is determined that the abnormality is present.

In the sixth aspect, when an abnormality occurs during energization of the heater, energization of the heater and the circulation fan is stopped, and the ventilation fan is turned. In the case of an energized state in which the heater cannot be controlled due to an abnormality such as a relay sticking or the like, in the case of a plurality of simultaneous troubles in which the circulation fan is locked, the energization of the heater and the circulation fan is stopped, and the ventilation fan is turned. This can cool the heat that has accumulated in the circulating air passage in the bathroom air conditioner, and has the effect of preventing fires that may occur due to abnormal heat and fire-related disasters due to ignition. Since the cooling means is operated by using a ventilation fan which is a member in the component configuration, the cost can be reduced more than necessary. As means for detecting the abnormality, it is determined whether or not there is an abnormality based on the detection signals of the heater and the circulation fan, and control is performed when the abnormality is determined.

In the seventh invention, the cooling means is used until power is no longer supplied to the bathroom air conditioner. That is, the cooling means is maintained as long as power is supplied to the bathroom air conditioner. For example, in a case where the heater is in an energized state in which a relay sticking abnormality occurs and cannot be controlled, while the power is being supplied to the heater, the cooling means is functioning, so it is safe and possible ignition from abnormal heat generation, It has the effect of preventing disasters from fires caused by ignition.

In the eighth invention, the cooling means is used until the breaker connecting the bathroom air conditioner is cut off. That is, the cooling means is maintained as long as the breaker connected to the bathroom air conditioner is not cut off. For example, in the case of an energized state in which the relay cannot be controlled due to occurrence of a relay sticking abnormality in the heater, the cooling means is functioning until the breaker is turned off, so that a safe and abnormal heat generation can cause a fire, a fire-related disaster. Has the effect of preventing.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be described with reference to preferred embodiments of the present invention with reference to the drawings. FIG. 1 is a flowchart showing the control means of the present invention. As means for detecting an abnormality of the bathroom air conditioner 20, whether or not an abnormality is detected is determined based on detection signals of the circulation fan 21, the ventilation fan 22, and the heater 23, and control is performed when the abnormality is determined. If an abnormality is detected in the heater 23 (A1), the power supply to the heater 23 is stopped and the circulation fan 21 is turned. If an abnormality is detected in the circulation fan 21 (A2), the power supply to the heater 23 and the circulation fan 21 is stopped, and the ventilation fan 22 is turned. Ventilation fan 22
When the abnormality is detected (A3), the energization of the heater 23 and the ventilation fan 22 is stopped and the circulation fan 21 is turned. Heater 2
If an abnormality of a plurality of simultaneous troubles of the circulation fan 3 and the circulation fan 21 is detected (A4), the energization of the heater 23 and the circulation fan 21 is stopped and the ventilation fan 22 is turned. If an abnormality of a plurality of simultaneous troubles of the heater 23 and the ventilation fan 22 is detected (A5), the energization of the heater 23 and the ventilation fan 22 is stopped and the circulation fan 21 is turned.

FIG. 2 is a side sectional view showing a bathroom air conditioner. The bathroom air conditioner 20 is installed on a ceiling B of a bathroom C, and has a main body case 27 whose lower surface is covered with a grill 26, in which a circulation fan 21, a ventilation fan 22, and a heater 23 are provided. Each is arranged and connected to a duct 28. By selectively driving these devices, ventilation, cool air, heating, and drying operations are performed. When performing ventilation, only the ventilation fan 22 is driven and the bathroom C
The humid air inside is exhausted outside through the duct 28 as indicated by the dashed arrow. Circulation fan 2 for cool air
By driving the ventilation fan 22 and the ventilation fan 22, the ventilation fan 22 allows the humid air in the bathroom C to be exhausted to the outside as shown by the dashed arrow and the two-dot chain arrow, and the circulation fan 21 circulates the air in the bathroom C at the same time. Let it. In addition, when heating is performed, the circulation fan 21 is driven and the heater 23 is energized, so that the bathroom C is turned on as indicated by the two-dot chain line arrow.
The inside air is heated by the heater 23 to circulate the bathroom air. Further, if heating and ventilation are operated simultaneously, the bathroom is heated and the humid air in the bathroom is discharged to the outside, so that the bathroom can be dried.

[Brief description of the drawings]

FIG. 1 is a flowchart showing control means of the present invention.

FIG. 2 is a side sectional view showing a bathroom air conditioner.

FIG. 3 is a flowchart illustrating a control unit according to the related art.

[Explanation of symbols]

 A ... abnormality detection B ... ceiling C ... bathroom 20 ... bathroom air conditioner 21 ... circulation fan 22 ... ventilation fan 23 ... heater 24 ... circulation air passage 25 ... ventilation air passage 26 ... grill 27 ... body case 28 ... duct

Continuing from the front page (72) Inventor Takeshi Ueyama 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Kazuhiro Haraga 2-chome Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka No. 1 Toto Equipment Co., Ltd. (72) Masanobu Ehara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture 2-1-1 Nakajima Totoki Kiki Co., Ltd. (72) Inventor Mamoru Iida 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Tochiki Kiki Co., Ltd. (72) Chinami Ohara Kitakyushu, Fukuoka Prefecture 2-1-1 Nakajima, Kokurakita-ku, Tokyo F-term (reference) in Tohoku Kiki Co., Ltd. 3L056 BD02 BD04 BD05 BD07 BE07 BF01 3L058 BD06 BE05 BG04 3L072 AA05 AB06 AC02 AE07 AF13 3L113 AB01 AC08 AC64 CB24 DA21

Claims (19)

[Claims] 1. A bathroom air conditioner for performing air conditioning for taking in air in a bathroom and discharging it to the outside, and air conditioning for circulating heat into the bathroom by a heating means, wherein the heating means is cooled. A bathroom air conditioner comprising cooling means. 2. A ventilation fan is provided as the air conditioner for discharging the air in the bathroom to the outside, a circulation fan is provided as the air conditioner for circulating the air in the bathroom, and a heater is used as the heating means for heating the circulating air. If an abnormality occurs during energization of the heater, at least one
A bathroom air conditioner characterized by turning at least one of the fans. 3. The bathroom air conditioner according to claim 2, wherein when an abnormality occurs during energization of the heater, energization of the heater is stopped and the circulation fan is turned. 4. The bathroom air conditioner according to claim 2, wherein when an abnormality occurs during energization of said heater, energization of said heater and said ventilation fan is stopped and said circulation fan is turned on. . 5. The bathroom air conditioner according to claim 2, wherein when an abnormality occurs during energization of the heater, energization of the heater is stopped and the ventilation fan is turned on. 6. The bathroom air conditioner according to claim 2, wherein when an abnormality occurs during energization of said heater, energization of said heater and said circulation fan is stopped and said ventilation fan is turned on. . 7. The cooling device according to claim 1, wherein the cooling unit is used until power is not supplied to the bathroom air conditioner.
The bathroom air conditioner according to claim 6. 8. A bathroom air conditioner according to claim 1, wherein said cooling means is used until a breaker connecting said bathroom air conditioner is cut off. 9. The bathroom air conditioner according to claim 2, wherein the heater is an electric heater having PTC characteristics. 10. The bathroom air conditioner according to claim 2, wherein the abnormality is a state in which the heater is fixed to a relay. 11. The bathroom air conditioner according to claim 2, wherein the abnormality is an abnormal heating state of the heater. 12. The bathroom air conditioner according to claim 2, wherein the abnormality is a state in which the circulation fan is locked and the relay of the heater is fixed. 13. The abnormal condition is a condition in which the circulation fan is locked and the heater is in an abnormal heat generation state.
Or the bathroom air conditioner according to 5 or 6. 14. The bathroom air conditioner according to claim 2, wherein the abnormality is an abnormal rotation of the circulation fan and a state in which the relay of the heater is fixed. 15. The bathroom air conditioner according to claim 2, wherein the abnormality is an abnormal heating state of the heater due to abnormal rotation of the circulation fan. 16. The bathroom air conditioner according to claim 2, wherein the abnormality is a state where the ventilation fan is locked and the relay is fixed to the heater. 17. The abnormal state is an abnormal heat generation state of the heater with the ventilation fan locked.
A bathroom air conditioner according to any one of claims 1 to 4. 18. The bathroom air conditioner according to claim 2, wherein the abnormality is a state where the ventilation fan rotates abnormally and the relay is fixed to the heater. 19. The bathroom air conditioner according to claim 2, wherein the abnormality is an abnormal heating state of the heater due to abnormal rotation of the ventilation fan.