JPH07117281B2 - Nozzle mechanism of air conditioner with air shower - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle mechanism for an air shower of an air conditioner with an air shower, which is usually installed in a sanitary space.

[0002]

2. Description of the Related Art Recently, an air conditioner with an air shower, which is installed in a sanitary space such as a dressing room, is equipped with an air shower nozzle for performing spot cooling, spot heating, or spot blowing, and drying the body after bathing is proposed. Has been done.

The structure of such an air conditioner with an air shower will be described, for example, as proposed in Japanese Patent Application No. 2-114445. The air conditioner body is embedded in the ceiling of a sanitary space such as a dressing room. And an air shower, the air conditioner main body has an intake port and an air conditioning outlet on the lower surface, and has an indoor heat exchanger for cooling and heating and an air conditioning fan built in, while the air shower is An air shower in which a fan for air shower sucking air from a downstream side of an indoor heat exchanger of an air conditioner body and a ceramic heater are arranged in a cylindrical air shower case, and an angle with respect to the air shower case can be adjusted. Nozzle is connected.

In the above air conditioner with an air shower, when the air shower is not used, the nozzle is housed in a storage place formed on the surface of the air conditioner body, and the angle of the nozzle with respect to the air shower case is large (usually 90
When the air shower is used, the nozzle is pulled out, and the angle to the air shower case is made small (that is, an angle that is nearly collinear) to perform spot blowing of the air shower, but the rotational position of the nozzle for the air shower is detected. If the air shower operation is performed when the angle of the nozzle with respect to the air shower case is larger than a predetermined angle (for example, 30 degrees), the resistance of the air passage increases and the air shower The amount of air blown by the spot fan was reduced, which could overheat the warm air heater.

Therefore, a nozzle position detecting mechanism such as a limiter switch for detecting the rotating position of the nozzle of the air shower is provided so that the rotating position of the nozzle is within a predetermined range, that is, the angle of the nozzle with respect to the air shower case. The air shower heater can be energized only when it is detected that the position is smaller than the predetermined angle (30 degrees), thereby reducing the flow resistance of the air flow path and suppressing the decrease in the air flow rate. , An air conditioner with an air shower has been proposed to prevent overheating of a heater.

[0006]

However, in the above-mentioned conventional air conditioner with an air shower, no countermeasure is taken when the nozzle position detecting mechanism such as the limiter switch fails. For example, the air shower for the nozzle is not provided. Even if the angle with respect to the case is larger than the predetermined angle (30 degrees), if the detection signal that the nozzle rotation position is within the predetermined range is output, the resistance of the air duct becomes large as described above. As a result, the amount of air blown by the spot fan of the air shower decreases, which may cause the warm air heater to overheat, and the limiter switch is used to rotate the nozzle within a predetermined range, that is, the nozzle. The angle to the air shower case is a predetermined angle (30 degrees)
The limiter switch is turned on within a range smaller than
If the limiter switch circuit is turned off in other ranges and the limiter switch is kept on regardless of the nozzle rotation position due to a malfunction of the limiter switch circuit, a nozzle drive motor such as a stepping motor that drives the nozzle. However, there is a problem in that the nozzle drive motor may continue to rotate beyond the stop position and may be damaged due to overheating of the nozzle drive motor.

An object of the present invention is to start operation after confirming that a nozzle position detection mechanism such as a limiter switch is normal when using an air shower.
It is an object of the present invention to provide a nozzle mechanism of an air conditioner with an air shower that can prevent overheating of a warm air heater and damage to a nozzle driving motor.

[0008]

In order to achieve the above object, the nozzle mechanism of the air conditioner with an air shower of the present invention comprises:
An air shower that takes in air from the downstream side of the indoor heat exchanger of the air conditioner and an air conditioner that has an intake port and an air conditioning outlet are integrated together, and the air shower nozzle is rotatably installed in the air shower case. In an air conditioner with an air shower that can be connected to adjust the angle with respect to the air shower case, a nozzle position detection mechanism such as a limiter switch that detects the rotational position of the nozzle (that is, the swing angle) is provided.
When it is detected that the rotation position of the nozzle is within the operation range when the air shower is started, that is, the angle of the nozzle with respect to the air shower case is smaller than a predetermined angle (for example, the limiter switch ON region). After the nozzle position detection mechanism detects that the nozzle has rotated upward by a predetermined drive angle (for example, 40 degrees) and the rotational position of the nozzle has reached outside the driving operation range (for example, the limiter switch OFF region). , The nozzle is rotated downward so that the nozzle rotation position is within the operation range (the limiter switch ON area), and after confirming this, the air shower operation is started. The flow path resistance can be reduced, the air flow rate can be prevented from decreasing, the heater can be prevented from overheating, and the nozzle drive motor can be prevented from damage. It is possible to stop.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner with an air shower, which is an embodiment of the present invention, will be described with reference to FIGS. The air conditioner main body 1 with an air shower is installed by being embedded in a ceiling wall W of a sanitary space, has an intake port 2 and a louver 4 on the indoor side surface of the sanitary space, and blows out warm air or cold air. In addition, a nozzle 5 that is normally stored in the storage recess 6 and is pulled out at the time of use is provided.

In the main body 1 of the air conditioner with an air shower, an air conditioner A having an intake port 2 and an air-conditioning outlet 3 on the lower surface is formed by a partition wall 14 having a spot ventilation port 15, and an air shower having a nozzle 5 on the lower surface. The air conditioner A is provided with a filter 21 and a room temperature thermistor 22 inside the air inlet 2, and a refrigerant reciprocating pipeline 71 is provided in a flow path from the air inlet 2 to the air conditioning outlet 3. An indoor heat exchanger 7 for cooling, which is connected to an outdoor unit (not shown), and a hot water regulating valve on the hot water supply pipe.
An indoor heat exchanger 8 for heating, which is connected to a hot water heat source device (not shown) through a hot water reciprocating pipe 81 having 80, and an indoor fan 13 are arranged in order, and the indoor heat exchanger 7 for cooling and the indoor heat exchanger 7 for heating are arranged. The heat exchanger temperature detection thermistor 9 is provided in contact with the indoor heat exchanger 8, and the louver 4 arranged at the air conditioning outlet 3 is provided.
Is connected to the auto louver motor 41 via an arm 42.

A drain pan 10 is disposed below the indoor heat exchanger 7 for cooling and the indoor heat exchanger 8 for heating.
A drain reservoir 101 is continuously provided on the side of the drain reservoir 101, and the drain reservoir 101 is provided with a detection electrode 11 and a drain pump 12 that detect the liquid level of the stored drain. The connected drain pipe 121 is led out of the air conditioner body 1.

During the air conditioning operation, indoor air is taken in through the intake port 2 (arrow F ₁ ) and cooled by the indoor heat exchanger 7 for cooling (when cooling) or heated by the indoor heat exchanger 8 for heating. The warm air (when heated) is blown from the air conditioning outlet 3 to the sanitary space by the indoor fan 13 (arrow F ₂ ).
It is a thing.

The air shower D is provided with an air shower spot fan 17 having a filter 18 at an intake port at one end, and has a ceramic heater 19 for hot air and a thermal fuse 19 inside.
The air shower case 16 provided with 0 and the heat prevention switch 191 is installed, and the nozzle 5 is rotatably connected to the other end of the air shower case 16 so that the angle with respect to the air shower case 16 can be adjusted. Spot vent 15
From which air on the downstream side of the indoor heat exchanger 7 for cooling and the indoor heat exchanger 8 for heating is sucked and blown from the nozzle 5.
While the indoor air may be sucked from the air-conditioning outlet 3 during the operation of the air shower D, the indoor air can be suppressed from being sucked by setting the indoor fan 13 to the slight air operation at this time.

The connecting end of the nozzle 5 to the air shower case 16 is supported by a rotating shaft 50 and is rotated by a nozzle driving motor 51 to adjust the angle of the nozzle 5 with respect to the air shower case 16. A nozzle position detecting device 52 for detecting an angle with respect to the air shower case 16 is arranged. As the nozzle position detecting device 52, a disc having a notch fixed to a drive shaft of a nozzle driving motor 51, a light emitting portion, and a light receiving portion are provided. The one using a photo interrupter composed of, or the one using a limiter switch is used.

The air shower D can blow hot air or cold air as needed, and during operation of blowing hot air, the angle of the nozzle 5 with respect to the air shower case 16 is adjusted to make the nozzle 5 a sanitary space. to protrude, which are driving the spot fan 17 performs spot blower (arrow F _3), when in need of hot air to heat the air blown from the spot fan 17 by energizing the ceramic heater 19 hot air However, the hot water regulating valve 80 is turned on to operate the indoor heat exchanger 8 for heating of the air conditioner A when necessary according to the strength of the operation mode and the intake air temperature. The temperature is raised to sufficiently raise the temperature of the warm air blown out from the nozzle 5 (backup operation).

On the other hand, when cold air is required, cold air obtained by operating the indoor heat exchanger 7 for cooling of the air conditioner A is sucked into the air shower D from the spot ventilation port 15 and from the nozzle 5 by the spot fan 17. It is what blows air.

The movement of the nozzle 5 of the air shower D will be described with reference to FIGS. 3 and 4. In the stored state of the nozzle 5 shown in FIG. 3, the center line L of the air shower case 16 and the nozzle at the time of storage are shown. The angle θ ₀ formed by the center line 1 of 5 is a large value (for example, 90 degrees), and the center line of the air shower case 16 is shown when the nozzle 5 is drawn out as shown in FIG. The angle formed by L and the center line 1 when the nozzle 5 is retracted is set to a predetermined angle θ ₁ (for example, 30 degrees) or less to reduce the flow passage resistance of the blower passage and energize the spot fan 17 and the ceramic heater 19. And drive.

Referring to FIG. 5, the relationship between the output signal of the nozzle position detecting device 52 and the nozzle position will be described. The angle formed by the center line L of the air shower case 16 and the center line 1 of the nozzle 5 when it is stored is predetermined. When the air shower D is in use within an angle θ ₁ (30 degrees) or less (position A to position B), an ON signal, that is, an operable signal is output, and the center line L of the air shower case 16 and the nozzle 5 are retracted. The angle formed by the center line l of the angle θ exceeds the predetermined angle θ ₁ (30 degrees) and the angle θ ₀
Exceeding the range (position B to position C) of (90 degrees) or less, and the position (position A) where the angle formed by the center line L of the air shower case 16 and the center line l of the nozzle 5 when stored is zero (position A). The nozzle drive motor 51 is stopped when the output signal of the nozzle position detection device 52 is switched from ON to OFF at the position A or the position B. .

Next, the operation of the air shower D will be described. At the start of the air shower operation, the output signal of the nozzle position detecting device 52 is confirmed. If the OFF signal is output, the nozzle 5 is operated downward. The air shower operation is started by rotating the nozzle 5 from the position (position A to position B), and when the ON signal is output, the nozzle 5 is moved upward (to the storage position C) by the predetermined angle θ ₁ It is rotated by a larger drive angle θ ₂ (θ ₂ > θ ₁ , for example 40 degrees).

When the nozzle position detecting device 52 outputs the ON signal, if the nozzle position detecting device 52 is normal, the nozzle 5 is in the use state of the air shower D in the range from the position A to the position B, and the nozzle 5 When the nozzle 5 is rotated upward (in the storage position C direction) by the drive angle θ ₂ , the nozzle 5 is removed from the usage state of the air shower D in the range from the position A to the position B, and the nozzle position detection device 52 outputs an off signal. However, when the nozzle position detecting device 52 continues to output the ON signal, it is determined that the nozzle position detecting device 52 is out of order and the error is displayed.

On the other hand, the nozzle 5 is moved upward (in the storage position C direction).
When the nozzle position detecting device 52 outputs an OFF signal when the nozzle position detecting device 52 is rotated by the drive angle θ ₂ (40 degrees), the nozzle position detecting device 52 is determined to be normal and the air shower operation is started.

Here, one example of the control operation of the air shower operation according to the present invention will be described with reference to the flow chart shown in FIG. 6 using the limiter switch as the nozzle position detecting device 52. When the air shower operation switch is turned on, the limiter switch (nozzle position detection device 5
When the output signal of 2) is confirmed and the limiter switch is off, it is determined that the nozzle 5 is not in the operating position and is in the range from position B to position C, and the nozzle 5 is placed in the lower operating position (position A). To position B) to start the air shower operation, and when the nozzle 5 is rotated downward and the limiter switch is turned on, the operating position (position A to position B) is reached. , The ceramic heater 19 and the spot fan 17 are energized to start the air shower operation, and the nozzle 5 is further rotated downward by the correction angle α from the position where the limiter switch is turned on, and the nozzle 5 is moved to the standard position during the air shower operation. Position.

When the limiter switch is on,
Since the nozzle 5 is stopped at the operating position, or because the limiter switch, the limiter circuit, or the like has failed, the nozzle 5 is moved upward (in the storage position C direction) by a driving angle θ ₂ (greater than the predetermined angle θ ₁ ). θ ₂ > θ ₁ , eg 40
The position of the nozzle 5 is surely positioned in the range from the position B to the position C where the limiter switch is turned off, and when the limiter switch is turned off, the nozzle 5 is moved to the lower operating position as described above. Rotate to start air shower operation. On the other hand, when the limiter switch continues to be turned on, it is determined that the limiter switch or the limiter circuit is out of order, and the failure is displayed without performing the air shower operation.

When the air shower operation is started and the nozzle 5 is rotated downward, if the limiter switch remains off without turning on, the position C to the position A
It is determined that the limiter switch or limiter circuit has failed at the time when the step motor, which is the nozzle driving motor 51, is driven by the number of pulses corresponding to the rotation angle up to, ie, the angle θ ₀ (for example, 90 degrees). Display a failure without showering.

[0025]

INDUSTRIAL APPLICABILITY The present invention, in an air conditioner with an air shower equipped with a nozzle position detection mechanism for detecting the rotational position of the nozzle, confirms whether or not there is a failure in the nozzle position detection mechanism before starting the air shower operation. By always performing the operation, the nozzle driving motor, such as the stepping motor that drives the nozzle, keeps rotating beyond the stop position and the nozzle driving motor is not overheated and damaged, and noise generation is suppressed. In addition, the heater is not overheated, and a comfortable air shower operation can be performed.

[Brief description of drawings]

FIG. 1 is an external view of an air conditioner with an air shower that is an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of an air conditioner with an air shower that is an embodiment of the present invention.

FIG. 3 is a schematic configuration diagram of an air shower when the nozzle is stored.

FIG. 4 is a schematic configuration diagram of an air shower during use.

FIG. 5 is an explanatory diagram showing a relationship between a nozzle position and an output signal of the nozzle position detection device.

FIG. 6 is a flowchart showing an example of a control operation according to the present invention.

[Explanation of symbols]

 1 Air conditioner body 2 Air inlet 3 Air conditioning outlet 5 Air shower nozzle 7 Indoor heat exchanger for cooling 8 Indoor heat exchanger for heating 13 Indoor fan 17 Spot fan for air shower 19 Ceramic heater (warm air heater) 51 Nozzle Drive motor (stepping motor) 52 Nozzle position detection device (limiter switch)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuo Tauchi 32 Akashi-cho, Chuo-ku, Kobe-shi, Hyogo Stock Company Noritsu (72) Inventor Takuhiro Tamura 32 Akashi-cho, Chuo-ku, Kobe City Hyogo Noritsu Co., Ltd. (56) Reference JP-A-63-220030 (JP, A) JP-A-63-183338 (JP, A) JP-A-2-223753 (JP, A) JP-A-1-179858 (JP, A) Actual Kaihei 1-158040 (JP, U)

Claims (1)

[Claims] 1. From the downstream side of an indoor heat exchanger of an air conditioner
Equipped with an air shower that takes in air, an air intake and an air conditioning outlet
The air conditioner with an air shower that integrates a built-in air conditioner and connects the air shower nozzle to the air shower case so that the nozzle can rotate and adjust the angle with respect to the air shower case detects the rotating position of the nozzle. A nozzle position detection mechanism is provided, and when it is detected that the rotating position of the nozzle is within the operation range when the air shower starts operating, the nozzle is rotated upward by a predetermined drive angle, and the rotating position of the nozzle is changed. After the nozzle position detection mechanism detects that the nozzle position has exceeded the predetermined range, the nozzle is rotated downward to set the nozzle rotation position within the operation range, and after confirming this, the air shower operation is started. Nozzle mechanism for an air conditioner with an air shower.