JP3075689B2 - Automatic ventilation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ventilation system for a general house.

[0002]

2. Description of the Related Art Conventionally, as an automatic ventilation device, for example, a bathroom ventilation device described in JP-A-6-331190 is known. This conventional publication discloses a bath detecting section for detecting a bathing state of a bathroom, a changeover switch for selecting automatic control and manual control, a manual control switch for selecting air volume and the like when manual control is selected, and a drive for a ventilation fan. A drive detection unit that detects the state, a timer that measures time, and a control unit that controls the drive of the ventilation fan based on the operation of each of these detection units and each switch, each time bathing is detected, The ventilation fan is automatically operated after a predetermined time after bathing, and control is performed to automatically stop the ventilation fan after a predetermined time has elapsed, thereby preventing the occurrence of mold due to forgetting to turn on the ventilation fan and forgotten to turn off the ventilation fan An automatic ventilation device capable of preventing energy loss is disclosed.

[0003]

However, in the above-mentioned conventional automatic ventilator, when it is desired to manually change the operation state from the automatic operation state to the arbitrary operation state, the changeover switch is switched to the manual side and the manual operation is further performed. It is necessary to perform an operation of selecting an arbitrary operation state by using a control switch, and there is a problem that it is necessary to operate two switches, and the operation is troublesome. In addition, during manual operation, automatic operation is completely stopped.If manual operation is stopped, the user will not return to automatic operation unless the user selects the automatic operation state and forgets to return to automatic operation. There was a problem that automatic operation was not performed and ventilation was not performed. The present invention has been made in view of the conventional problems described above, and in an automatic ventilation device that can be switched to manual operation,
It is an object of the present invention to improve the usability by eliminating the troubles caused by the switching between automatic and manual.

[0004]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, a ventilation means is provided which can be changed to a plurality of ventilation air volumes, and which ventilates a predetermined space; A detection unit that detects the state of air in the space to be ventilated by an automatic operation determination unit that determines an optimal operation state of the ventilation unit based on an input from the detection unit,
A manual operation selection unit that manually selects an operation state of the ventilation unit, and an automatic ON mode in which a determination result of the automatic operation determination unit is reflected as an output of the ventilation unit driving unit,
A manual input unit having an automatic operation mode selection unit capable of selecting an automatic OFF mode not to be reflected; and an automatic operation mode selection unit, when the automatic ON mode is selected, the judgment result of the automatic operation judgment unit. When the automatic OFF mode is selected, the output of the automatically set air flow is stopped, and the operation state other than stop is set in the manual operation selection unit. Is selected, the ventilation fan air volume is set according to the manual operation selection unit, and the set air volume is output to the manual operation mode, and the automatic operation mode selection state at that time is stored. An air flow setting unit that performs control based on the stored automatic operation mode selection state when stop of operation is selected; and an operation of the ventilation unit based on an output of the air flow setting unit. A state capable of changing ventilation means driving unit, and the provided. According to the second aspect of the present invention, in the automatic ventilator according to the first aspect, when the automatic ON mode is selected in the manual operation state when the automatic operation mode is selected, stop is selected in the manual operation selection unit. And control is performed based on the automatic ON mode. According to a third aspect of the present invention, in the automatic ventilator according to the first or second aspect, display means for displaying an operation state is provided. When the display means is in the manual operation state, the display means is in the manual operation state. The automatic operation mode selection state stored in the storage means is simultaneously displayed. According to the fourth aspect of the present invention, in the automatic ventilation device according to any one of the first to third aspects, the air volume setting unit is configured to set a preset minimum air volume no matter how the manually set air volume and the automatically set air volume are set. It was configured to secure.

[0005]

In the device according to the first aspect, when it is desired to manually select an arbitrary ventilation air volume, the manual operation selecting section is operated. Based on this operation, the air volume setting unit outputs the manually set air volume, and the ventilation means is driven at this air volume. Thus, the operation of the automatic operation and the manual operation are not required only by operating the manual operation selection unit. Next, when stopping the operation by the above-mentioned arbitrary ventilation air volume, the manual operation selection unit is operated to select “stop”. Based on this operation, the air volume setting unit sets the automatic operation mode stored at the time of manual selection,
That is, the mode is returned to the original mode of the "automatic ON mode" or the "automatic OFF mode", and the operation of selecting the original mode is unnecessary and the user does not forget to return.

According to the second aspect of the present invention, when an operation for selecting the "automatic ON mode" is performed during the manual operation, the air volume setting section outputs the automatically set air volume in the "automatic ON mode". In addition to the above, processing is performed assuming that “stop” is selected in the manual operation selection unit. Therefore, from the state of the manual operation, "stop" can be selected by the manual operation selection unit to return to the original automatic operation mode, and the "automatic operation mode selection unit can return" Even if "Auto ON mode" is selected, "Auto ON mode" can be selected without selecting "Stop".
Is started, and the operability is excellent.

According to the third aspect of the invention, when the ventilation means is driven, the ventilation air volume is displayed on the display means, so that the ventilation air volume can be accurately known. Furthermore, when in the manual operation state, the operation mode is the manual operation state, and the stored automatic operation mode selection state, that is, the mode in which the operation returns when the manual operation is stopped is displayed. Can be prevented from being forgotten to be erased, and the operation state after the manual operation is stopped can be recognized, thereby improving usability.

According to the fourth aspect of the present invention, the minimum air volume is ensured by the air volume setting section regardless of the manually set air volume and the automatically set air volume. That is, even if each set air volume is set to an air volume lower than the predetermined minimum air volume, ventilation is always performed without the air volume falling below the minimum air volume.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) The automatic ventilation device of Embodiment 1 is shown in FIG.
As shown in FIG. 1, the key input unit 1 is operated by a user, and the air condition of a room to be ventilated, for example, a sensor for detecting air quality such as air contamination, a temperature sensor for detecting temperature, and the like. A sensor detection unit 2, a ventilation fan 3 provided in a room to be ventilated or a space communicated with the room, and driving of the ventilation fan 3 based on an input from the key input unit 1 and the sensor detection unit 2. And a control unit 4 for controlling. Further, the control unit 4 sets a ventilation fan drive unit 4a for switching a driving state including a stop of the ventilation fan 3 and a ventilation fan air volume (in the case of the first embodiment, two types of weak and strong) based on the input. A ventilation fan operating air volume setting unit 4b that outputs the set air volume to the ventilation fan driving unit 4a; and an automatic operation air volume determining unit 4c that determines the optimal air volume based on the input from the sensor detection unit 2.
An automatic operation air volume setting unit 4d for setting an automatic operation air volume according to a determination result of the automatic operation air volume determination unit 4c and outputting the air volume to the ventilation fan operation air volume setting unit 4b in an automatic ON mode described later; Based on the input from No. 1, the setting of the automatic operation mode for reflecting the determination result of the automatic operation air volume determination unit 4 c to the air volume and the automatic OFF mode for not reflecting the determination result are changed, and the automatic operation air volume setting unit 4 d Operation mode setting section 4 that outputs to
e, the manual operation air volume “stop” and “weak” or “strong” are set based on the input from the key input unit 1, and the manual operation air volume is output to the ventilation fan operation air volume setting unit 4b. A setting unit 4f and the automatic operation mode setting unit 4
e or a storage means 4g for storing the output of the automatic operation air volume setting section 4d.

Next, the key input unit 1 will be described with reference to FIG. As shown in the figure, the key input unit 1 has four ON / OFF-type switches of an illumination switch 1a, an OFF switch 1b, an operation switch 1c, and an automatic switch 1d (always OFF, and is ON only when a pressing operation is performed). ).

Next, the operation of the control unit will be described with reference to the flowchart of FIG. In step S11, the output of the sensor detector 2 is input. Subsequently, in step S12, the automatic operation airflow determination unit 4c determines the automatic operation airflow based on the output of the sensor detection unit 2. As an example of this determination, when the sensor detection unit 2 detects dirt on the air due to tobacco smoke or the like, or when the room temperature or humidity becomes a predetermined value or more, the ventilation is rapidly performed. Otherwise, it is determined to be "stop". Step S13
Then, the output of the key input unit 1 is input. Step S
At 14, it is determined whether or not there is a new switch input from the key input unit 1. If YES, the process proceeds to step S15,
If NO, the process proceeds to step S19.

In step S15, the type of switch input is determined. If the automatic switch 1d has been operated, the operation proceeds to step S16. If the off switch 1b has been operated, the operation proceeds to step S22, and the operation switch 1c is operated. If so, the process proceeds to step S25. Step S16
Then, it is determined whether or not the manual operation is currently stopped.
In the case of ES, the process proceeds to step S17, and in the case of NO, that is, in the case of manual operation, the process proceeds to step S23. Step S17
Then, the automatic operation mode is set. In this embodiment, the automatic operation mode includes an automatic ON mode (hereinafter, referred to as “ON”) in which the determination result of the automatic operation air volume determination unit 4c is reflected in the automatically set air volume, and an automatic OF that does not perform the reflection.
F mode (hereinafter, referred to as “OFF”) exists, and performs a process of switching the type of the automatic operation mode between “ON” and “OFF” each time an ON signal is input from the automatic switch 1d. . In step S18, the storage unit 4
In this embodiment, the automatic mode is set to “ON” or “OF”.
F ”is stored. In step S19, it is determined whether or not the automatic operation mode is "ON", and the process proceeds to step S21 with YES, that is, the automatic operation mode "ON", and NO, that is, the automatic operation mode "OF".
F "at step S20. In step S20, the ventilation fan operation air volume setting unit 4b sets the ventilation fan operation air volume to the manual operation air volume set by the manual operation air volume setting unit 4f. In step S21, the ventilation fan operating air volume setting unit 4b
In, the ventilation fan operation airflow is set to the automatic operation airflow set by the automatic operation airflow setting unit 4d. Based on the control flow of steps S11 to S21, the automatic switch 1d
Is performed, the automatic operation mode is set to "ON" or "OFF". When the automatic operation mode is "ON", the ventilation fan operation air volume is set to the air volume set by the automatic operation air volume setting section 4d. Each switch 1 of the key input unit 1
If no new operation is performed on b to 1d, the automatic operation mode “O
N "is set to the air volume set by the automatic operation air volume setting unit 4d, and if the automatic operation mode is set to" OFF ", the air volume set by the manual operation air volume setting unit 4f (in the first embodiment, the air volume is set to" N "). Stop, weak, and strong).

In step S22, it is determined whether or not the manual operation is currently stopped.
Step S2 if NO, that is, if the vehicle is in manual operation
Proceed to 23. In step S23, the manual operation air volume is set to "stop" by the manual operation air volume setting unit 4f. In step S24, the types of the automatic operation mode "ON" and "OFF" stored in the storage unit 4g are read. Set to the automatic operation mode. When the off switch 1b is operated based on the control flow of steps S22 to S24, if the manual operation is being performed at that time, the manual operation air volume is set to “stop” and the automatic operation stored in the storage unit 4g is performed. The mode is switched to “ON” or “OFF”, and if the automatic operation is being performed, the state is maintained. Also, when the automatic switch 1d is turned on during the manual operation (flow in steps S15 → S16 → S23 → S24), the manual operation air volume is set to “stop” and the automatic operation mode stored in the storage unit 4g is set. Switch.

In step S25, it is determined whether or not the manual operation is currently stopped.
6; if NO, that is, if manual operation is in progress, step S
Proceed to 27. In step S26, the current type of the automatic operation mode (“ON” or “OFF”) is stored in the storage unit 4g. In step S27, it is determined whether or not the manually operated airflow is at the upper limit, that is, “strong”, and the process proceeds to step S28 with YES, that is, “strong”, and NO, that is, “weak”.
"Stop" proceeds to step S29. In step S28, the manually operated air volume is set in the manually operated air volume setting section 4f.
Set the lower limit of the manual operation airflow, that is, “weak”. In step S29, the manually operated air volume setting unit 4f sets the manually operated air volume one step higher than the current air volume.
That is, the manually set air volume is switched from “weak” to “strong” and “stop” to “weak”. That is, in the first embodiment, each time the operation switch 1c is operated, the manually operated airflow is increased.
Switches from "weak" to "strong" → "weak". By the way, based on the control flow of steps S27 to S29, if there are three settings, for example, "weak", "medium", and "strong", as the setting of the air flow, each time the operation switch 1c is operated, "weak" →
The switching is performed in a cycle of “medium” → “strong” → “weak”. Embodiments 2 and 3 described below are configured as described above. In step S30, the manual operation air volume set by the manual operation air volume setting unit 4f is set as the ventilation fan operation air volume by the ventilation fan operation air volume setting unit 4b. More than,
Based on the flow of steps S25 to S30 after proceeding from step S15 to step S25, the operation switch 1c
Is operated, the operation is set to the manual operation, and the control for switching the set air volume between “weak” and “strong” is performed. In this case, at the time when the operation switch 1c is operated, the one-stage airflow is switched from the airflow at that time regardless of whether the operation is being performed manually or automatically (that is,
It may be switched to "weak" if it is currently "stop", to "strong" if it is currently "weak", to "stop" if it is currently "strong", or Only when the operation is being performed, control is performed to switch one step from the current air volume as described above, while in the case of automatic operation, the operation is started from "weak" of the manual operation and switched one step at a time as described above. The control may be performed.

Next, in step S31, the ventilation fan air volume set by the ventilation fan operation air volume setting unit 4b is changed to the ventilation fan driving unit 4a.
, And further outputs a drive signal from the ventilation fan drive unit 4a to the ventilation fan 3.

Next, an operation example of the first embodiment will be described with reference to the time chart of FIG. In this time chart, at time t0, the automatic operation mode is “ON” in response to the operation of the automatic switch 1d, and at this time, the automatic operation airflow determination unit based on the input from the sensor detection unit 2. The determination result of 4c is "stop", and as a result, the ventilation fan 3 is in a stopped state. This control is performed in steps S11 → S12 → of the flowchart of FIG.
Based on the flow of S13 → S14 → S19 → S21. Thereafter, at time t1, the automatic operation airflow amount determination unit 4c determines the airflow as “strong” by detecting, for example, dirt on the air, and the ventilation fan 3 sets the airflow as “strong” while the determination of “strong” continues. Driven by This control is also performed in the same manner as in step S11 → S1 described above.
It is based on the flow of 2 → S13 → S14 → S19 → S21.

Next, at time t2, the automatic operation mode has been switched to "OFF". This switching is performed by operating the automatic switch 1d. In this case, the flow of steps S15 → S16 → S17 causes the flow to be switched to step S1.
The automatic operation mode is switched to "OFF" in the process of step 7, and furthermore, this state is stored in step S18, and the process proceeds from step S19 to step S20. Because the manual operation air volume is always set to “stop” when the manual operation is stopped in the past, the ventilation fan operation air volume is set to the manual operation air volume = “stop” in step S20 according to the current flow. It is.

Next, at time t3, the manual switch 1c
Is being operated. As a result, steps S14 → S15
Based on the flow of → S25 → S26 → S27 → S29, the manually operated airflow is set to “weak” and the ventilation fan 3 is set to “weak” airflow.
To start driving.

Next, at time t4, the off switch 1b is operated, and the manually operated air flow is set to "stop" based on the flow of steps S14 → S15 → S22 → S23. In the following step S24, the automatic operation mode at the time of switching to the manual operation is read from the storage means 4g. In this case, at the time of t3, the automatic operation mode "O"
Since "FF" is stored, the ventilation fan 3 is stopped.

Thereafter, at time t5, the automatic switch 1
d is turned on, and the automatic operation mode is switched to “ON”. At this time, since the automatic operation air flow rate determination unit 4c has determined that the operation is "stop", the ventilation fan 3 is kept stopped.

Next, at time t6, the operation switch 1c
Is being operated. This operation is performed once, and step S
In the flow of 15 → S25 → S26, after the automatic operation mode “ON” at this time is stored, steps S27 → S29
, The manually operated airflow is set to “weak”.

Next, at time t7, the automatic operation air flow rate determining unit 4c determines that the air flow is "strong". However, since the automatic operation mode is "OFF", steps S14 → S19 →
The manually operated air flow rate based on the flow of S20, that is,
It is set to “weak”, and the air volume of the ventilation fan 3 is maintained at “weak”.

Next, at time t8, the off switch 1b is operated, and the manually operated airflow is set to "stop" based on the flow of steps S15 → S22 → S23. further,
As a result of the processing in the following step S24, the automatic operation mode "ON" stored in the storage means 4g is read, and the ventilation fan operation airflow is set to "strong" which is the judgment result of the automatic operation airflow judgment unit 4c in step S21. , The air volume of the ventilation fan 3 is switched to “strong”. Incidentally, in the first embodiment, in steps S18 and S26, only the automatic operation mode is stored as "ON" or "OFF", and as a result, the automatic operation airflow determination unit immediately after this point in time is configured. Although it is configured that the air volume is set according to the determination result of 4c, in steps S18 and S26,
The air volume at that time is also stored, and this t8
When the off switch 1b is operated, first, the stored air volume is immediately set to control the air volume of the ventilation fan 3, and the air volume according to the determination result of the automatic operation air volume determination unit 4c at the subsequent time is set. May be configured.
In this case, the air volume is set immediately after the operation of the off switch 1b, and there is no time lag until the air volume is set.

Thereafter, at time t9, the determination of the automatic operation air flow rate determination unit 4d is switched to "stop", and based on this, the air volume of the ventilation fan 3 is switched to "stop".

As described above, in the first embodiment, when switching from the automatic operation state to the manual operation, the manual operation airflow can be arbitrarily set only by operating the operation switch 1c. That is, each time the operation switch 1c is operated once, the air volume changes in a cycle of “weak” → “strong” → “weak” (steps S27 to S29). If you feel cold or noisy when rotating, you can operate the operation switch 1c once to get "weak". Also, when the ventilation fan is "stopped" or "weak" by automatic operation, perform rapid ventilation. If desired, the operation can be set to “strong” by operating twice or once. Therefore, there is no need to operate a switch for switching the mode in addition to the switch for setting the air volume as in the related art, and the effect that the operability is excellent can be obtained.

Further, as described above, when switching from automatic operation to manual operation, the automatic operation mode at that time is stored in the storage means 4g (steps S15 → S25 → S2).
6) Then, in order to stop this manual operation,
When the off switch 1b or the automatic switch 1d is operated, the operation mode is returned to the automatic operation mode temporarily stored in the storage means 4g (steps S15 → S22 → S23 → S
Flow of 24 → S21 or step S15 → S1
6 → S23 → S24 → S21). As described above, when switching to the automatic operation after performing the manual operation, the operation is returned to the automatic operation simply by operating one of the off switch 1b and the automatic switch 1d, and the manual operation is stopped as in the conventional case. There is no need to perform a switch operation for switching the operation mode in addition to the operation to be performed, so that it is possible to obtain an effect that the operability is excellent and the operation of returning to the automatic operation is not forgotten.

In the following, other embodiments will be described, but only the differences from the first embodiment will be described.
The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the flowchart, the same control contents as those in the first embodiment are denoted by the same step numbers, and description thereof is omitted.

(Embodiment 2) FIG. 5 is an overall view of an embodiment 2 in which a control unit 24 controls the turning on / off of an LED air volume indicator lamp 21a and an automatic mode indicator lamp 21.
An operation display unit 24a for switching the lighting, blinking, and extinguishing of b is provided. The display lamps 21a and 21b are provided as display means, and are not limited to LEDs, and may be those that display characters using liquid crystal or the like, or those that display sound. The air volume indicator light 21
a and the automatic mode indicator 21b are provided in the key input unit 21 as shown in FIG.
Is the operating air volume of the ventilation fan 3 (“weak”
"Medium""strong"), and the automatic mode indicator 21b
Illuminates to indicate that the automatic operation mode is "ON", blinks to indicate that the automatic operation mode is "ON" and is currently performing manual operation, and turns off to indicate that the automatic operation mode is "OFF" Is shown.

FIG. 7 is a flowchart showing a control flow by the control unit 24 of the second embodiment. In addition, as described in the description of the first embodiment, in the second embodiment, three levels of “weak”, “medium”, and “strong” are set as the operating air volume of the ventilation fan 3, and therefore, steps S 27 to S 27 are performed. S2
In the control by No. 9, control is performed to switch the setting in a cycle of “weak” → “medium” → “strong” → “weak” according to the operation of the operation switch 1c.

In this flowchart, in step S201 following steps S20 and S21,
Automatic mode indicator 21b according to the current automatic operation mode
Is turned on or off. That is, when the automatic operation mode is “ON”, the light is turned on, and when the automatic operation mode is “OFF”, the light is turned off. Steps S28 and S29
In step S202 following step S202, the automatic mode indicator 21b
Is blinked only when the automatic operation mode is “ON”, and is turned off (does not blink) when the automatic operation mode is “OFF”. It is assumed that the determination of “ON” and “OFF” is included in this step S202. This step S202 follows the flow after the operation switch 1c is operated in step S15. When the automatic mode indicator 21b flashes, the current operation is performed with the manual operation airflow based on the operation of the operation switch 1c. However, it indicates that the automatic operation mode is “ON”.

In step S203 before step S31, the operation display unit 24a displays the set air volume by the air volume indicator lamp 21a in accordance with the output of the ventilation fan operation air volume setting unit 4b.

In the second embodiment, since the configuration is as described above, the current air volume is displayed by the air volume indicator lamp 21a regardless of manual operation or automatic operation, and the automatic mode indicator lamp 2 is used.
1b indicates that the automatic operation mode is “ON” and the automatic operation is being performed, while the automatic mode indicator 21b blinks to indicate that the automatic operation mode is currently “O”.
N ", but indicates that manual operation is being performed, and the operating state can be visually recognized. In particular, when the automatic mode indicator lamp 21b is blinking, the manual operation is stopped. By simply doing so, it is possible to know that the automatic driving mode is returned to the “ON” state, and the effect of excellent usability is obtained.

(Embodiment 3) In Embodiment 3, the automatic operation mode described in Embodiment 1 is set to "ON", "OF"
In addition to "F", "automatic ON + base operation" (hereinafter simply referred to as "base operation") that always secures the minimum air volume ("weak")
This is an example in which is set. FIG. 8 shows a key input unit 31 according to the third embodiment. A base switch 31a is set next to the automatic switch 1d as the automatic operation mode.

FIG. 9 is a flowchart showing a control flow according to the third embodiment. In this flowchart, if it is determined in step S15 that the automatic switch 1d or the base switch 31a has been operated, the process proceeds to step S17, and in this step S17, the automatic operation mode is set to "ON", "OFF", or "OFF" according to the operation. Set “base operation”. Incidentally, "ON" and "OFF" are switched every time the automatic switch 1d is operated, as in the first embodiment, and are set to "base operation" only when the base switch 31a is operated. Further, in this embodiment, since "base operation" is "ON + base operation", it is determined that YES in step S19. Incidentally, in the following step S21, the first embodiment
Similarly to the above, the output is set to the output of the automatic operation air flow rate determination unit 4c.

In step S301, it is determined whether or not the operation is "base operation". If YES, that is, if the operation is "base operation", the process proceeds to step S302. If there is, the process proceeds to step S31. In step S302, the ventilation fan operation air volume is equal to or more than the minimum air volume (“weak”) (≧), less than (<),
That is, it is determined whether it is “stop”, and “weak” or more (≧)
If so, the process proceeds to step S31, and if “stop”, the process proceeds to step S303. In step S303, the ventilation fan volume is set to the minimum volume, that is, “weak”. By the way,
Four stages of “weak”, “medium 1”, “medium 2”, and “strong” are set as the air volume switching stages. If the minimum air volume referred to in steps S301 to S303 is “medium 1,” step S302 is performed.
Then, in the case of "weak" or "stop", the process proceeds to step S303 and is set to "medium 1".

As described above, in the third embodiment,
Even in a mode in which there is a setting of a base operation in which ventilation is always performed at a low air volume, the same operation and effect as those of the first embodiment can be obtained.

[0037]

As described above, in the device according to the first aspect, when it is desired to manually select the ventilation air volume, it can be selected only by operating the manual operation selection section, and the automatic / manual mode switching operation is unnecessary. Therefore, the effect that the operability is excellent is obtained, and when the manual operation is stopped, if the operation of selecting “stop” is performed in the manual operation selection unit, the operation is stored at the time of the manual selection. Automatic operation mode, that is, "automatic ON mode" or "automatic OF
The mode is restored to the original mode of the "F mode", so that the operation of selecting the original mode is not required, the operability is excellent, and the effect of not forgetting to return to the automatic mode is obtained.

According to the second aspect of the present invention, when an operation for selecting the "automatic ON mode" is performed during the manual operation, the air volume setting section outputs the automatically set air volume in the "automatic ON mode". In addition to switching to the above, processing is performed assuming that "stop" is selected in the manual operation selection unit, so that "stop" is selected by the manual operation selection unit and the original automatic operation Mode, and when the "automatic ON mode" is selected by the automatic operation mode selection unit, the operation of the "automatic ON mode" is started without selecting "stop",
The effect of being excellent in operability is obtained.

According to the third aspect of the present invention, when the ventilation means is driven, the ventilation air volume is displayed on the display means, so that the ventilation air volume can be accurately known. The state is displayed, and the stored automatic operation mode selection state, that is, the mode for returning when the manual operation is stopped, is displayed, and it is possible to prevent the user from forgetting to erase the vehicle due to forgetting the manual operation. At the same time, the operating state after the manual operation is stopped can be recognized, and the effect that the usability is improved is obtained.

According to the fourth aspect of the present invention, the air volume setting section is configured to ensure the minimum air volume regardless of the manually set air volume and the automatically set air volume. Even if the air flow is performed, the air volume is not reduced below the minimum air volume, and the effect that the ventilation is always performed can be obtained.

[Brief description of the drawings]

FIG. 1 is an overall view showing an automatic ventilation device according to a first embodiment.

FIG. 2 is a front view showing a key input unit according to the first embodiment.

FIG. 3 is a flowchart illustrating a control flow according to the first embodiment.

FIG. 4 is a time chart showing an operation example of the first embodiment.

FIG. 5 is an overall view showing an automatic ventilation device according to a second embodiment.

FIG. 6 is a front view showing a key input unit according to the second embodiment.

FIG. 7 is a flowchart showing a control flow according to the second embodiment.

FIG. 8 is a front view showing a key input unit according to the third embodiment.

FIG. 9 is a flowchart showing a control flow according to the third embodiment.

[Explanation of symbols]

 1, 21, 31 Key input section (manual input section) 1b Off switch (manual operation selection section) 1c Operation switch (manual operation selection section) 1d Automatic switch (automatic operation mode selection section) 2 Sensor detection section (detection section) 3 Ventilation fan (ventilation means) 4, 24 Control unit 4a Ventilation fan drive section (ventilation means drive section) 4b Ventilation fan operation air volume setting section (air volume setting section) 4c Automatic operation air volume determination section (automatic operation determination section) 4d Automatic operation air volume setting section ( 4e Automatic operation mode setting unit (air volume setting unit) 4f Manual operation air volume setting unit (setting unit) 4g Storage unit (setting unit) 21a Air volume indicator (display unit) 21b Automatic mode indicator (display unit)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/007 F24F 11/04

Claims (4)

(57) [Claims] Claims: 1. It is configured to be changeable to a plurality of ventilation air volumes,
A ventilator for ventilating a predetermined space, a detector for detecting a state of air in a space to be ventilated by the ventilator, and an automatic operation for judging an optimal operation state of the ventilator based on an input from the detector. A determination unit, a manual operation selection unit that manually stops the ventilation unit or selects a plurality of ventilation air volumes, and an automatic ON mode in which a determination result of the automatic operation determination unit is reflected as an output of the ventilation unit driving unit, A manual input unit having an automatic operation mode selection unit that can select an automatic OFF mode that is not reflected; and an automatic operation mode selection unit, when the automatic ON mode is selected, a determination result of the automatic operation determination unit. While setting and outputting the automatically set airflow which is the ventilation airflow based on, when the automatic OFF mode is selected, the output of the automatically set airflow is stopped, and In the manual operation selection unit, when a ventilation air flow other than stop is selected, the manual operation state in which the manually set air flow that is the selected ventilation air flow is set and output, and the automatic operation mode at that time is set. An air volume setting unit that stores the selected state, and then performs control based on the stored automatic operation mode selection state when the stop of the manual operation is selected, based on the output of the air volume setting unit. An automatic ventilator, comprising: a ventilator driving unit capable of changing an operation state. 2. The automatic ventilation device according to claim 1,
The air flow rate setting unit is configured to perform the automatic O
An automatic ventilator characterized in that when an N mode is selected, the manual operation selecting section processes the stop as selected, and performs control based on the automatic ON mode. 3. The automatic ventilator according to claim 1, further comprising a display unit for displaying an operation state, wherein the display unit is, when in the manual operation state, in the manual operation state, An automatic ventilation apparatus characterized in that the automatic operation mode selection state stored in the storage means is simultaneously displayed. 4. The automatic ventilation device according to claim 1, wherein the air volume setting section ensures a preset minimum air volume regardless of how the manually set air volume and the automatically set air volume are set. An automatic ventilator characterized in that it is configured as: