DE19822258A1 - Electric bathroom ventilator fan with extended operation after use in windowless rooms - Google Patents

Abstract

The ventilator (1) has a motor (2) with two levels of performance, a lower level when the room is occupied and a higher level for a period after room lighting (16) is switched off. A delay relay (11) switches the supply (8) from a connection (5) to another (6) when the switch (14) is opened.

Description

The invention relates to an electrically driven Fan according to the preamble of claim 1.

Bathrooms and toilet rooms without outside windows are in usually by electrically driven fans vented. Other rooms within apartments, e.g. B. Kitchens or storage rooms can also be ventilated be vented. Furthermore, fans can also be used for Spaces are used that have adequate exterior windows available, but for reasons of comfort a controlled Venting is applied.

The German standard, DIN 18 017, Part 3, August 1990 edition deals with the ventilation of bathrooms and toilets without external windows with fans. According to section 3.1.1 of this standard, ventilation systems for the ventilation of bathrooms can be designed for a planned minimum volume flow that discharges 40 m ³ / h over a period of at least twelve hours per day. An alternative provides a volume flow of 60 m ³ / h, which can be reduced to 0 m ³ / h. In this case, the fan must continue to run after each actuation of the switch until a further 5 m ^{3 of} air have been removed.

In practice, fans with a volume flow of 40 m ³ / h were used in continuous operation in order to avoid complex, fault-prone control. However, the performance is not sufficient in all cases if the room, bathroom or toilet needs to be ventilated quickly after use.

The second alternative requires fans with a higher performance. Furthermore, reduce larger noises and an increased draft comfort.

The invention has for its object one adequate forced ventilation with simple means and good Ensure comfort. It is according to the invention solved the features of claim 1.

According to the invention, the fan has two Lei levels, from which the high level excludes is switched via a follow-up relay. This will ensures that the fan is in use while using the Room is only operated with a base load while by the higher performance during the post-run phase of the room is ventilated quickly during use. Thus the Neither by annoying noises nor by one unpleasant drafts while using the room disturbed.  

The fan can constantly with a round duration be operated or if necessary by a Switching relays are switched on, in the expedient a tracking relay is integrated. The switching relay has an input for a signal from a switch that either is operated by the user of the room or by a sensor, e.g. B. a photo sensor or a motion sensor.

The tracking relay and the switching relay in semiconductors technology build very small, so it is advantageous in the fan, in a switch box or in a distributor can be integrated or housed.

In the description and in the claims are number rich features related and described ben. Those skilled in the art will use the combined features moderately in the sense of the tasks to be solved individually consider and together to useful further combinations grasp.

Exemplary embodiments of the invention are shown in the drawing shown.

Show it:

Fig. 1 is a schematic representation of a ventila gate with a tracking relay and

Fig. 2 is a schematic representation of a ventila tor with a switching relay with an integrated tracking relay and an input for a signal of a switch.

A two-stage fan 1 has a drive which has an electric motor 2 , an operating capacitor and a speed reduction 3 , a connection terminal 4 for the neutral phase, a connection terminal 5 for a power phase at base load and a connection terminal 6 for a power phase at nominal load.

In the embodiment according to FIG. 1, the electric motor 2 is connected via a follow-up relay 9 to the mains lines 7 and 8 , the neutral line 7 with the terminal 4 and a mains input 10 of the follow-up relay 9 and the live mains line 8 with the terminal 5 for the base load and the network input 11 of the overrun relay 9 is connected. The connection terminal 6 for the higher nominal load is connected via a nominal load output 17 to the after relay 9 . A light switch 14 switches on the one hand a room lighting 16 and on the other hand gives a signal on a user input 12 of the tracking relay 9 . When the light switch 14 opens, the wake relay 9 switches the higher power level of the fan 1 , so that an increased ventilation volume flow is available after use of the room, while comfort is not affected by annoying noises and an unpleasant draft when using the room .

The embodiment of Fig. 2 has a switching relay 15 with a built-off relay. The switching relay 15 switches when the light switch 14 is closed, only the base load via the base load output 13 and the terminal 5 , while the nominal load is switched via the nominal load output 17 and the terminal 6 as soon as the after-relay of the switching relay 15 is activated by opening the switching relay 14 becomes. If the light switch 14 is actuated again during the run-on phase, the run-up relay of the switching relay 15 or the run-up relay 9 according to FIG. 1 is reset to zero, so that only the base load is effective during use of the room.

The light switch 14 serves to generate a user-defined signal. A separate switch can also be provided for this. In addition to the light switch 14 or instead of the light switch 14 , a photo sensor can be provided which closes a contact when the light is switched on. In the same sense, a motion sensor can be arranged that detects movements in space.

Advantageously, the follow-up time z. B. by a potentiometer ( 18 ) or a switch on the tracking relay ( 9 , 15 ).

Reference list

1

fan

2nd

Electric motor

3rd

Operating capacitor and speed reduction

4th

Terminal neutral

5

Base load terminal

6

Connection terminal nominal load

7

Mains cable neutral

8th

Power line performance

9

Follow-up relay

10th

Network input

11

Network input

12th

User entrance

13

Base load output

14

light switch

15

Switching relay

16

Room lighting

17th

Nominal load output

18th

Potentiometer

Claims (9)

1. Electrically driven fan ( 1 ) with a run-on control for forced-ventilation rooms, characterized in that it has two power levels, of which the high power level is switched exclusively via a run-on relay ( 9 , 15 ). 2. Fan ( 1 ) according to claim 1, characterized in that it is operated with a basic continuous load and the tracking relay ( 9 ) switches on the higher power level when a user-defined switch ( 14 ) opens. 3. Fan ( 1 ) according to claim 1, characterized in that a switching relay ( 15 ) with an integrated tracking relay and an input ( 12 ) for a signal from a switch ( 14 ) switches on the low base load level of the fan ( 1 ) and, if appropriate, that Resets the tracking relay to zero when the switch ( 14 ) is closed and the tracking relay starts when the switch ( 14 ) is opened. 4. Fan ( 1 ) according to claim 2 or 3, characterized in that the follow-up relay ( 9 , 15 ) is reset to zero when the switch ( 14 ) closes during the follow-up phase. 5. Fan ( 1 ) according to claim 3 or 4, characterized in that a sensor or user actuates the switch 14 . 6. Fan ( 1 ) according to claim 5, characterized in that the sensor is a photosensor and / or a movement sensor. 7. Fan ( 1 ) according to one of the preceding claims, characterized in that the relay ( 9 , 15 ) is integrated in the fan ( 1 ). 8. Fan ( 1 ) according to one of the preceding claims, characterized in that the relay ( 9 , 15 ) is integrated in a switch box or distribution box. 9. Fan ( 1 ) according to one of the preceding claims, characterized in that the overrun relay ( 9 , 15 ) is adjustable.