DE10004050B4 - Pluggable device and connector part for supplying a fan with DC voltage - Google Patents

Abstract

Plug-in device (1, 23) and plug connector part (21) for supplying a fan (20) with direct voltage, the plug-in device (1, 23) a housing (23), an electronic circuit and a first and second connection device (2, 4 , 25, 27), wherein lines (3,26) with mains voltage can be connected to the first connection device (2,27) and an electrical connection for supplying the fan (20) with direct voltage can be established with the second connection device (4,25) , and wherein the pluggable device (1,23) can be electrically and mechanically detachably connected to the plug connector part (21) of the fan (20) by means of the second connection device (4,25), the plug connector part (21) being fastened to the fan (20) and the electronic circuit is designed in such a way that it can be operated over a wide range of mains voltages and at the same time supplies essentially the same direct voltage for supplying the fan (20), the wide range eich comprises AC voltages from 100 to 240 V and mains frequencies from 50 to 60 Hz, the connector part (21) having brackets (22) for additional mechanical fastening of the pluggable device (1,23), the brackets (22) on the connector part ( 21) are mounted and braced on a shape of the housing (23) to improve the mechanical stability.

Description

The invention relates to a pluggable device and a connector part for supplying a fan with DC voltage.

Known devices for supplying a fan with DC voltage are designed for installation in the control cabinet or a DC voltage, such as the industry-standard 24 V DC voltage, is taken from a power supply unit located in the control cabinet. The disadvantage is that in such cases a separate cable must be installed to supply the fan. This is complex, expensive and increases the complexity of the system.

The poor EMC compatibility of such DC cables is a problem in some cases, since the DC voltage can have a superimposed AC component that causes interfering radiation.

From the DE 31 22 655 A1 an electric motor with external fan is known as the closest prior art.

From the DE 198 08 089 A1 a device for converting mains voltage to low voltage is known.

An electric fan is known from JP H01-117995A.

A fan heater is known from JP H01-301 997 A.

A fan is known from JP H01-144295 A.

The invention is therefore based on the object of developing a plug-in device and a connector part for supplying a fan with DC voltage while avoiding the aforementioned disadvantages. In particular, there should be low electromagnetic radiation, the cable routing should be clear and inexpensive, and it should be possible to use industry-standard standards.

According to the invention the object is achieved in a pluggable device and a connector part for supplying a fan with DC voltage according to the features specified in claim 1.

The advantage here is that no special cable labeling is required, since an industry-standard power supply is used. Simple wiring is therefore also possible. Another advantage is that the EMC compatibility is increased because they have no disturbing radiation.

According to the invention, the connector part has brackets for additional mechanical fastening of the pluggable device. The advantage here is that the mechanical stability is increased.

In a further advantageous embodiment, the second connection device can be plugged into the connector part in such a way that the electrical DC voltage supply for the fan is carried out by the electronic circuit. The advantage here is that plug-in connections enable easy and inexpensive maintenance by quickly replacing parts.

In a further advantageous embodiment, the housing has fastening tabs for optional fastening as wall mounting. The advantage here is that if there is not enough space, the device according to the invention can also be used at another location, such as on a wall, a T-beam or the like.

In a further advantageous embodiment, the DC voltage generated by the electrical circuit can be used as a 24 V DC voltage according to the industry standard for operating the fan. The advantage here is that a voltage is used that is common in industry and for the transmission of which cables and connectors are widely used. In addition, the device according to the invention can also be used to supply other 24 V devices, only plugging into a suitable connector part being required.

Further advantageous embodiments result from the subclaims.

• In der 1 ist die steckbare Vorrichtung 1 symbolisch gezeigt. Leitungen 3 mit Netzspannung führen zur ersten Anschlussvorrichtung 2 und versorgen die elektronische Schaltung der steckbaren Vorrichtung mit einer Netzspannung. Netzspannungen aus einem weiten Bereich von Netzspannungen und Netzfrequenzen, in diesem Ausführungsbeispiel 100 V bis 240 V Wechselspannung und 50 Hz bis 60 Hz, sind zum Betrieb verwendbar. Vorteilhaft ist dabei die internationale Einsatzfähigkeit der Vorrichtung, also der Betrieb an verschiedenen Netzversorgungssystemen. Aus der Netzspannung bildet die elektronische Schaltung eine unipolare Spannung oder Gleichspannung, die eine ausreichend kleine Restwelligkeit aufweist, zur Versorgung eines Lüfters, der über die zweite Anschlussvorrichtung 4 mit 24 V Gleichspannung versorgt wird.
• In der 2 ist das Einstecken des erfindungsgemäßen Ausführungsbeispiels schematisch dargestellt. Das Gehäuse 23 der steckbaren Vorrichtung wird mit der zweiten Anschlussvorrichtung 25 in das Steckverbinderteil 21 eingesteckt. Die Bügel 22 sind am Steckverbinderteil 21 gelagert und werden an einer nicht in der 2 eingezeichneten Ausformung des Gehäuses 23 verspannt zur Verbesserung der mechanischen Stabilität.

The invention will now be explained in more detail with the aid of figures:

• In the 1 is the pluggable device 1 shown symbolically. cables 3 with mains voltage lead to the first connection device 2 and supply the electronic circuit of the pluggable device with a mains voltage. Line voltages from a wide range of line voltages and line frequencies, in this exemplary embodiment 100 V to 240 V AC voltage and 50 Hz to 60 Hz, can be used for operation. The international applicability of the device, that is to say the operation on various network supply systems, is advantageous. From the mains voltage, the electronic circuit forms a unipolar voltage or DC voltage, which has a sufficiently low residual ripple, for supplying a fan, which is connected to the second connection device 4 is supplied with 24 V DC.
• In the 2 the insertion of the embodiment according to the invention is shown schematically. The housing 23 the pluggable device is connected to the second connection device 25 into the connector part 21 plugged in. The temples 22 are on the connector part 21 stored and are not in the 2 drawn shape of the housing 23 braced to improve mechanical stability.

The connector part 21 is on the fan 20 attached. In a further embodiment, the connector part is instead fastened to the fan cover, that is to say essentially firmly connected to the electric motor and its housing.

The housing also has mounting tabs 24 for optional attachment to a wall. In such a case, the DC voltage supply is provided by an additional cable connection from the first connection device 25 to the connector part 21 realized.

In all cases, the supply leads with mains supply 26 to the first connection device 27 of the housing 23 , This first connection device 27 is designed as a plug connection in some exemplary embodiments according to the invention or as a cable gland in some other exemplary embodiments.

All of the exemplary embodiments according to the invention therefore each represent a decentralized energy supply for a DC voltage fan, which can be used in many standard mains voltage systems and is supplied with one phase. Some devices according to the invention are designed with a high degree of protection.

In further exemplary embodiments according to the invention, in which fans of high power are required, the electronic circuit is designed such that it can be operated with a multiphase mains supply, for example a three-phase supply.

LIST OF REFERENCE NUMBERS

1

pluggable device

2, 27

first connection device

3

Lines with mains voltage

4, 25

second connection device

20

Fan

21

connector part

22

hanger

23

casing

24

mounting tabs

26

Supply with mains supply

Claims (4)

Pluggable device (1,23) and connector part (21) for supplying a fan (20) with DC voltage, wherein the pluggable device (1, 23) comprises a housing (23), an electronic circuit and a first and second connection device (2, 4, 25, 27), wherein lines (3,26) with mains voltage can be connected to the first connection device (2,27) and an electrical connection for supplying the fan (20) with direct voltage can be established with the second connection device (4, 25), and the pluggable device (1, 23) can be connected in an electrically and mechanically detachable manner to the plug connector part (21) of the fan (20) by means of the second connection device (4, 25), the connector part (21) being attached to the fan (20), and wherein the electronic circuit is designed in such a way that it can be operated on a wide range of mains voltages and thereby delivers essentially the same DC voltage for supplying the fan (20), the wide range comprises alternating voltages from 100 to 240 V and network frequencies from 50 to 60 Hz, wherein the connector part (21) has brackets (22) for additional mechanical fastening of the pluggable device (1, 23), wherein the brackets (22) are mounted on the connector part (21) and are braced on a shape of the housing (23) to improve the mechanical stability. Pluggable device and connector part after Claim 1 , characterized in that the second connection device (4,25) can be plugged into the connector part (21) in such a way that the electrical DC voltage supply of the fan (20) is carried out by the electronic circuit. Pluggable device and connector part according to one of the preceding claims, characterized in that the DC voltage generated by the electrical circuit can be used as a 24 V DC voltage according to the industry standard for operating the fan. Pluggable device and connector part according to one of the preceding claims, characterized in that all parts and connections are designed with a high degree of protection.

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