JPH06129678A - Ventilation fan - Google Patents

Abstract

PURPOSE:To execute inspection for checking a state of setting of a timer device very simply and surely in a state of the timer device being incorporated, in the case when the timer device for which a prescribed timer motion time is set fixedly out of timer motion times being settable in a plurality of stages is built in. CONSTITUTION:The content of an inspection mode routine executed by a control circuit used as a control means and a timer device is shown. This routine is executed when a power source is made in a state in which an on-off switch and a timer switch are ON-operated simultaneously. First a set timer motion time set by a time limit setting circuit is read in (step Al), and when the timer motion time read in is '10 minutes', an operation indicator lamp 6a is lighted (steps A2 and A5). When it is '30 minutes', a timer indicator lamp 6b is lighted (steps A3 and A6), and when it is '3 hours', both of the operation indicator lamp 6a and the timer indicator lamp 6b are lighted (steps A4 and A7).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan in which a timer device controls the operating time of a blower fan.

[0002]

2. Description of the Related Art Conventionally, a ventilation fan having a built-in timer device for controlling a running duration has been provided. However, the ventilation fan itself is selected according to the intended use, and once installed, The installation position is rarely changed, so the timer operating time of the timer device is
There is a circumstance in which it is sufficient to set a fixed time according to the purpose of the ventilation fan. However, in the case of manufacturing a ventilation fan, if a timer device having a different timer operating time is prepared for each application, improvement in manufacturability and cost reduction due to mass production effect cannot be expected. Therefore, in practice, a timer device that can set the timer operating time in multiple stages (long and short) is prepared as a component common to a plurality of types of ventilation fans, and the timer operation is performed at the stage of incorporating the timer device in the ventilation fan. It has been configured to set the time to a time according to the purpose of the ventilation fan, and such a setting is performed by selectively disconnecting a jumper wire provided on the timer device or using a dip switch. I am trying to do it.

[0003]

When manufacturing the above ventilation fan, it is necessary to inspect the setting state of the timer operating time of the timer device. Needless to say, it is desirable to perform such an inspection after the timer device is installed, but in the state where the timer device is installed in this way, it is difficult to confirm the setting state of the timer operating time. There was a point, and some measure was desired.

The present invention has been made in view of the above circumstances, and an object thereof is to incorporate a timer device in which a predetermined timer operating time is fixedly set from among timer operating times that can be set in a plurality of stages. In this case, it is an object of the present invention to provide a ventilation fan that has an effect such that a confirmation check of the setting state of the timer device can be performed extremely easily and reliably with the timer device incorporated.

[0005]

In order to achieve the above object, the present invention provides a timer device in which a predetermined timer operating time is fixedly set among a plurality of timer operating times that can be set, and a blower fan. In the ventilation fan provided with a control means for controlling the operating time of the device based on the timer operating time of the timer device and a plurality of display elements for displaying the operating state of the blower fan, the control means is set to the inspection mode. It is configured such that the plurality of display elements are turned on in different combinations depending on the length of the timer operating time set in the timer device when switched.

[0006]

When the timer operating time set in the timer device is inspected with the built-in timer device in which the predetermined timer operating time is fixedly set from the timer operating time which can be set in a plurality of steps Switches the control means to the inspection mode. Then, in the control means, a plurality of display elements are turned on in different combinations depending on the length of the timer operating time set in the timer device. It is possible to easily and surely check the timer operating time of the timer device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 shows a schematic electrical configuration of the ventilation fan by combining functional blocks. In FIG. 3, a fan motor 1 for ventilation operation by a blower fan is provided in a ventilation fan main body (not shown), and is electrically connected and disconnected through a drive circuit 3 according to a command from a control circuit 2. The operation panel 4 is provided in a predetermined portion of the ventilation fan main body so that it can be operated by a user, and is selectively operated by an operation circuit 5 for giving an operation signal to the control circuit 2 and a command from the control circuit 2. The display circuit 6 is turned on.

The control circuit 2 includes a CPU, and has both the functions of the control means and the timer device in the present invention. In this case, the control circuit 2
Has a terminal S for setting a timer time, for example, 10 minutes,
From the three stages of timer operation time of 30 minutes and 3 hours, the time corresponding to the state of the input signal to the terminal S is fixedly set. Specifically, for example,
The timer operating time of the toilet ventilation fan is set to 10 minutes, and the timer operating time of the kitchen ventilation fan and the bathroom ventilation fan are set to 30 minutes and 3 hours, respectively.

The timer operating time in the control circuit 2 as described above is set through the time setting circuit 7 connected to the terminal S. This time limit setting circuit 7
Is provided on the same wiring board as the control circuit 2 and the drive circuit 3, for example, the configuration is such that the timer operating time is set by cutting the jumper wire connecting between the predetermined circuit patterns, or the dip switch is turned on / off. The timer operation time is set by selecting the state.

As shown in FIG. 4 showing the front appearance of the operation panel 4, the operation circuit 5 includes an on / off switch 5a and a timer switch 5 which are momentary type push button switches.
b, and the display circuit 6 is provided at a position corresponding to each of the switches 5a and 5b, and includes an operation indicator lamp 6a and a timer indicator lamp 6b, which are light emitting diodes, respectively (in the present invention, respectively). Equivalent to the display element)
It is configured to include.

Now, in the following, the control content of the control circuit 2 and the operation related thereto will be described with reference to FIGS. 1 and 2.
Will be described with reference to. The control circuit 2 is switched to the initial state in response to the power-on, and in this initial state, the fan motor 1 is kept in the power-off state, and the operation display lamp 6a and the timer display lamp 6b are kept in the off state. The timer operating time is set to the time set by the time limit setting circuit 7. When the on / off switch 5a is turned on from the stopped state of the ventilation operation, the control circuit 2 switches the fan motor 1 to the energized state to start the ventilation operation, and at the same time lights the operation indicator lamp 6a. When the on / off switch 5a is turned on again from the operating state, the fan motor 1 is turned off to stop the ventilation operation, and the operation indicator lamp 6a is turned off.

When the timer switch 5b is turned on in the operating state, the control circuit 2 starts the timer operation for the set time and turns on the timer indicator lamp 6b. After that, when the timer operation time elapses, The fan motor 1 is cut off to stop the ventilation operation, and the operation indicator lamp 6a and the timer indicator lamp 6b are turned off. Further, the control circuit 2 controls the timer switch 5 during the timer operation period.
When b is turned on again, the timer operation is stopped and the timer indicator lamp 6b is turned off to continue the ventilation operation.

Thus, the control circuit 2 is configured to be switched to the inspection mode when the power is turned on while the on / off switch 5a and the timer switch 5b are simultaneously turned on. That is, in the inspection process in the manufacturing line of the ventilation fan, the control circuit 2 is switched to the inspection mode by performing the above-mentioned operation, and the control circuit 2 is switched to the inspection mode as shown in FIG. Perform a test mode routine as shown.

In FIG. 1, in the inspection mode routine, the timer operating time set by the time limit setting circuit 7 is read (step A1), and the timer operating time thus read is "10 minutes", "30 minutes" and It is determined whether the time is "3 hours" (steps A2, A3, A4).

When the timer operating time set by the time limit setting circuit 7 is "10 minutes", the operation indicator light 6a is turned on (step A5), and the timer operating time is set to "30".
If it is "minute", the timer indicator lamp 6b is turned on (step A6), and if the timer operating time is "3 hours", both the operation indicator lamp 6a and the timer indicator lamp 6b are turned on. (Step A7), and such a lighting state is continued for a certain time T (step A8).
Then, when the fixed time T has elapsed, the operation indicator lamp 6a and the timer indicator lamp 6b in the lit state are extinguished (step A9), and then the inspection mode routine is ended (return).

In summary, the control circuit 2 in the state where the control circuit 2 is switched to the inspection mode has an operation indicator light according to the length of the timer operating time (10 minutes, 30 minutes, or 3 hours) set therein. 6a and the timer indicator lamp 6b are turned on in different combinations as shown in FIG.

Therefore, when inspecting the timer operating time set in the control circuit 2 in a product completed state in which the control circuit 2 and related components are incorporated in the ventilation fan body in the inspection process in the manufacturing line of the ventilation fan, the inspector must It is only necessary to confirm the lighting states of the operation indicator lamp 6a and the timer indicator lamp 6b, and as a result, it becomes possible to easily and surely inspect the timer operating time set in the control circuit 2. Moreover, since the display of the inspection result in this case is performed by using the operation display lamp 6a and the timer display lamp 6b originally provided in the ventilation fan main body, the inspection system may be complicated. It has the advantage of disappearing.

In the above embodiment, the function of the timer device is shared by the control circuit 2, but it goes without saying that an independent timer device may be incorporated.
Further, the lighting in the above-mentioned embodiment is a broad concept including blinking.

[0019]

As is apparent from the above description, according to the present invention, when a timer device in which a predetermined timer operating time is fixedly set among the timer operating times which can be set in a plurality of stages is incorporated. When switched to the inspection mode, a plurality of display elements provided for displaying the operating state of the blower fan are lighted in different combinations according to the length of the timer operating time set in the timer device. From this, it is possible to perform an inspection for confirming the setting state of the timer device extremely easily and surely in a state where the timer device is incorporated, and it is possible to simplify the configuration for such inspection. It is a thing.

[Brief description of drawings]

FIG. 1 is a flowchart showing the contents of control by a control circuit in an embodiment of the present invention.

FIG. 2 is a diagram for explaining a combination of lighting states of an operation indicator lamp and a timer indicator lamp in the inspection mode.

FIG. 3 is a functional block diagram showing a schematic electrical configuration.

FIG. 4 is a schematic front view of an operation panel portion.

[Explanation of symbols]

In the drawings, 1 is a fan motor, 2 is a control circuit (control means,
Timer device), 5 is an operation circuit, 5a is an on / off switch, 5
Reference numeral b is a timer switch, 6 is a display circuit, 6a is an operation indicator (display element), 6b is a timer indicator (display element), and 7 is a time limit setting circuit.

Claims (1)

[Claims] 1. A timer device in which a predetermined timer operating time is fixedly set among timer operating times that can be set in a plurality of stages, and an operating time of a blower fan is controlled based on the timer operating time of the timer device. In the ventilation fan provided with a control means for controlling and a plurality of display elements for displaying the operating state of the blower fan, the control means has a timer operating time set in the timer device when switched to the inspection mode. The ventilation fan is configured to light the plurality of display elements in different combinations depending on the length of the ventilation fan.