GB2340548A - Isolation transformer and low voltage fan - Google Patents

Isolation transformer and low voltage fan Download PDF

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Publication number
GB2340548A
GB2340548A GB9808502A GB9808502A GB2340548A GB 2340548 A GB2340548 A GB 2340548A GB 9808502 A GB9808502 A GB 9808502A GB 9808502 A GB9808502 A GB 9808502A GB 2340548 A GB2340548 A GB 2340548A
Authority
GB
United Kingdom
Prior art keywords
fan
transformer
isolation transformer
low voltage
water resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9808502A
Other versions
GB9808502D0 (en
Inventor
Raymond John Hudson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUSZY CORP
Original Assignee
SUSZY CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUSZY CORP filed Critical SUSZY CORP
Priority to GB9808502A priority Critical patent/GB2340548A/en
Publication of GB9808502D0 publication Critical patent/GB9808502D0/en
Publication of GB2340548A publication Critical patent/GB2340548A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A low voltage fan 1 and an isolation transformer 9 are encased within a fan ventilator housing or plenum chamber 6 having an air intake 7 and air exhaust 8. The transformer 9 is further housed within a water resistant box 9 which has means for connecting and sealing a power supply cable. The power supply to the transformer 9 is at 240V, the transformer supplying power to the fan at 12V. A fan override timer may be provided. The device may be used to displace air in wet or hazardous areas such as bath and shower rooms.

Description

2340548 Safetv Fan This invention relates to ventilation apparatus for use
in wet areas that remove or displace air in a building or room space and to an integral isolation transformer for such apparatus.
In efforts to ensure safe conditions within buildings, designers have increasingly made provision in new and existing buildings to introduce Safe Extra Low Voltage (isolated 12v). In particular with the use of ventilators in wet conditions such as bath and showers rooms or hazardous areas.
However, in domestic dwellings in particular, the requirement to locate a remote transformer is both time consuming to the installer and wasteful in the requirement to run extra wiring to the transformer and then to the ventilator device.
It is the object of this invention to provide Safe Extra Low Voltage to the ventilator with an integral Isolation transformer that is encased within the fan ventilator housing. The Isolation transformer having its own water proof housing that accepts and seals the incoming high voltage power supply (240v).
The safety fan apparatus in accordance with the present invention is characterised by a 12v fan powered from a full isolation transformer (240v to 12V), and a water resistant box within the plenum chamber containing the fan. Means of connecting external power supply and sealing the power supply cable are contained within the water resistant box housing the transformer.
A safety fan apparatus in accordance with the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 Shows the wiring layout 2 Figure 2 Fan assembly schematic Figure 3 Sealed box assembly schematic The Safety fan system comprises a plenum charnber fan and transformer box assembly with means for intake and exhaust.
3 KEY FOR FIGURE 1 Fan 1. Transformer 2. Timer 3. Light Switch 4. Bulb 5. Plenum chamber 6. Water resistant box 9. Isolation switch 12. Light ring main connector.
KEY FOR FIGURE 2 Fan 1. Transformer 2. Timer 3. Plenum chamber 6. Air intake 7. Air Exhaust 8. Water resistant box 9.
KEY FOR FIGURE 3 Transformer 2. Water resistant box 9. Cable Flange & seal 10. Connector 11. Box seal 14.
4

Claims (4)

Claims
1. A device counting a Safe Extra Low Voltage fan integral with a Full isolation transformer.
2. A device according to claim 1 that has the full isolation transformer contained within a water resistant housing.
3. A device according to claim 1 and 2 that contain the fan and isolation transformer within a common plenum chamber.
4. A device according to claim 1,2 and 3 that contain a fan and fan override timer, the trigger for the timer being isolated within the water resistant housing.
GB9808502A 1998-04-23 1998-04-23 Isolation transformer and low voltage fan Withdrawn GB2340548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9808502A GB2340548A (en) 1998-04-23 1998-04-23 Isolation transformer and low voltage fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9808502A GB2340548A (en) 1998-04-23 1998-04-23 Isolation transformer and low voltage fan

Publications (2)

Publication Number Publication Date
GB9808502D0 GB9808502D0 (en) 1998-06-17
GB2340548A true GB2340548A (en) 2000-02-23

Family

ID=10830736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9808502A Withdrawn GB2340548A (en) 1998-04-23 1998-04-23 Isolation transformer and low voltage fan

Country Status (1)

Country Link
GB (1) GB2340548A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506025A (en) * 2011-11-25 2012-06-20 中国人民解放军国防科学技术大学 12V direct-current air cooling control module
GB2497357A (en) * 2011-12-09 2013-06-12 Greenwood Air Man Ltd Equipment, such as ventilation fans, with removable mains PSU mounted in fan housing or externally to comply with safety extra low voltage SELV standards

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834629A (en) * 1981-10-14 1989-05-30 Tateishi Arthur K Modular fan
DD289705A5 (en) * 1989-12-05 1991-05-08 Wtz Fuer Arbeitsschutz,De FEEDING ENERGY FOR A VENTILATING VISOR FOR WELDERS
US5291383A (en) * 1992-09-02 1994-03-01 Exide Electronics Corporation Simplified UPS system
US5501844A (en) * 1994-06-01 1996-03-26 Oxidyn, Incorporated Air treating apparatus and method therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834629A (en) * 1981-10-14 1989-05-30 Tateishi Arthur K Modular fan
DD289705A5 (en) * 1989-12-05 1991-05-08 Wtz Fuer Arbeitsschutz,De FEEDING ENERGY FOR A VENTILATING VISOR FOR WELDERS
US5291383A (en) * 1992-09-02 1994-03-01 Exide Electronics Corporation Simplified UPS system
US5501844A (en) * 1994-06-01 1996-03-26 Oxidyn, Incorporated Air treating apparatus and method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506025A (en) * 2011-11-25 2012-06-20 中国人民解放军国防科学技术大学 12V direct-current air cooling control module
GB2497357A (en) * 2011-12-09 2013-06-12 Greenwood Air Man Ltd Equipment, such as ventilation fans, with removable mains PSU mounted in fan housing or externally to comply with safety extra low voltage SELV standards
GB2497357B (en) * 2011-12-09 2016-02-10 Greenwood Air Man Ltd Equipment with removable power supply

Also Published As

Publication number Publication date
GB9808502D0 (en) 1998-06-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)