GB2149444A - Dehumidification device - Google Patents

Abstract

To collect the discharge out of a warmed room the condensation which occurs especially near windows, a hole provided in or near a window frame (1) is fitted with a metal member (7) exposed at one end (11) to cold air outside the room and at its other end (14) to air inside the room. The member and/or the hole being shaped to allow moisture forming on the member to drain outside the room. <IMAGE>

Description

SPECIFICATION Dehumidification device This invention relates to a dehumidification device forprovidingdehumidification of a room and to be associated with a window or window frame.

Condensation of moisture from the atmosphere is often a problem in inhabited rooms, particularly in centrally heated dwellings, causing dampness ofthe walls of the room. The condensation occurs when the relatively hot atmosphere ofthe room comes into contact with a relatively cool surface in the room,for example a metalwindowframeorthewindowglass itself of the room, such contact lowering thetemperature ofthe atmosphere in contact and thus causing moisture to condense on the relatively cool surface.

Such condensation can be restricted by providing adequate ventilation ofthe room but this has the disadvantage that it is wasteful ofthe energy used to heatthe atmosphere in the room to the required temperature.

According to one aspect ofthis invention, there is provided a device for providing dehumidification of a room, comprising a heat conductive member adapted to be located in a through hole in a wall ofthe room and adjacent a window frame, a first part of the member being in contact with the atmosphere within the room and a second partofthe member in contact with the atmosphere outside the room,the member and/orthe hole being shaped to allow moisture forming onthe membertodraintooutsidethe room.

In use of the device of this invention the member is cooled bythe atmosphere outside the room in contact with the second part of the member such that the first part ofthe member provides a relatively cool surface within the room on which condensation will preferen tially occur. The moisture on the member will drain through the hole to outside the room whereby dampness in the room caused by condensation will be prevented or at least limited.

The heat conductive member is preferably formed of metal, for example aluminium, and can be finnedto enhance its heattransfer properties and the area over which condensation may form. Most preferably the member is disposed in association with a plastics member, e.g. a liner, which has a heat insulating and waterproof effect but can be disposed in association with an insulating window frame formed of, for example, timber orthermally insulated aluminium.

The device can be incorporated in a hole in a window frame or in the sill of a window frame with the hole being between the windowframe and the sill. In practice a number of the devices may be present in association with a window frame. The device may be provided as separate entity arranged in a specially provided hole in a wall of the room.

Devices according to this invention will now be described by way of example with reference to the drawings in which Figure 1 is a diagrammatic side view of a first device incorporated inawindowsill; Figure2 isa diagrammatic side view of a second device incorporated in a window sill; and Figure 3 is a diagrammatic horizontal section view of a third device.

The same reference numbers are used in the different embodiments to describe the same parts.

In the embodiment of Figure 1 there is shown a window 1 within which are mounted glass window panes 2. Below the window frame 1 is a known drainage sill 3 which comprises a flat body 4 having at one edge a depending box 5 to be disposed on the outside surface of a room and an upstanding trapezoidal section 6 at the outer edge to face the inside of the room. The sill may be formed of a plastics material, e.g. unplasticised polyvinyl chloride. The device ofthe invention is interposed between the underside of the frame 1 and the drainage sill 3. The device comprises a lower part 7 and an upper part 8.

The lower part consists of a flat body 9 having an inner upturned edge portion 10 and an outer sharply downturned portion 11 which projects beyond the outer room wall.The upper part consistsofa flat roof 12 to underlie the windowframeand a depending vertical outerwall 13 and an inclined innerwall 14.

Slots 15 are present in the inclined wall 14. The device does not extend the full length of the window, as can be seen.

In use, moisture within the room tends to condense in the inside edge portion 14 and to pass th rough the drain slots 15. From there it will be directed towards the outside and may pass sidewards out ofthe device and exit along the sill 3.

In the embodiment of Figure 2 the device ofthe invention is integrallyformed with the drainage sill.

The roof 12 underlies the frame 1 and the sidewalls 13 and 14 are integral with the edge portions Sand 6 of the sill, respectively. Slots 15 are present in the wall 14, and further slots 16 are present in the outer wall 13.

The member operates in the same way as the embodiment of Figure 1, same that fins 17. 18 are presentto increase the surface area on which moisture may condense and escape respectively.

In the embodiment of Figure 3the member comprises a wall 19 extending between two window jambs 20.

On the inside the member has fins 17 which overlie the section 5 ofthe drainage sill 3. At the outside the member has a box section 21 which is exposed to the atmosphere. The member operates as described above, moisture condensing on the fins being directed into the draining sill andthendrawn out of the room by the temperature of the box section 21.

1. A device for providing dehumidification of a room, comprising a heat conductive member adapted to be located in a through hole in a wall ofthe room, a first part ofthe member being in contact with the atmosphere within the room and a second part of the member in contact with the atmosphere outside the room, the member andiorthe hole being shaped to allow moisture forming on the member to drain outside the room.

2. A device as claimed in Claim 1, wherein the member is supported in the hole so that its first part is upturned and its second part is downturned to provide Thedrawing(s) originally filed was (were) informal and the print here reproduced is taken from a laterfiledformal copy.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Dehumidification device This invention relates to a dehumidification device forprovidingdehumidification of a room and to be associated with a window or window frame. Condensation of moisture from the atmosphere is often a problem in inhabited rooms, particularly in centrally heated dwellings, causing dampness ofthe walls of the room. The condensation occurs when the relatively hot atmosphere ofthe room comes into contact with a relatively cool surface in the room,for example a metalwindowframeorthewindowglass itself of the room, such contact lowering thetemperature ofthe atmosphere in contact and thus causing moisture to condense on the relatively cool surface. Such condensation can be restricted by providing adequate ventilation ofthe room but this has the disadvantage that it is wasteful ofthe energy used to heatthe atmosphere in the room to the required temperature. According to one aspect ofthis invention, there is provided a device for providing dehumidification of a room, comprising a heat conductive member adapted to be located in a through hole in a wall ofthe room and adjacent a window frame, a first part of the member being in contact with the atmosphere within the room and a second partofthe member in contact with the atmosphere outside the room,the member and/orthe hole being shaped to allow moisture forming onthe membertodraintooutsidethe room. In use of the device of this invention the member is cooled bythe atmosphere outside the room in contact with the second part of the member such that the first part ofthe member provides a relatively cool surface within the room on which condensation will preferen tially occur. The moisture on the member will drain through the hole to outside the room whereby dampness in the room caused by condensation will be prevented or at least limited. The heat conductive member is preferably formed of metal, for example aluminium, and can be finnedto enhance its heattransfer properties and the area over which condensation may form. Most preferably the member is disposed in association with a plastics member, e.g. a liner, which has a heat insulating and waterproof effect but can be disposed in association with an insulating window frame formed of, for example, timber orthermally insulated aluminium. The device can be incorporated in a hole in a window frame or in the sill of a window frame with the hole being between the windowframe and the sill. In practice a number of the devices may be present in association with a window frame. The device may be provided as separate entity arranged in a specially provided hole in a wall of the room. Devices according to this invention will now be described by way of example with reference to the drawings in which Figure 1 is a diagrammatic side view of a first device incorporated inawindowsill; Figure2 isa diagrammatic side view of a second device incorporated in a window sill; and Figure 3 is a diagrammatic horizontal section view of a third device. The same reference numbers are used in the different embodiments to describe the same parts. In the embodiment of Figure 1 there is shown a window 1 within which are mounted glass window panes 2. Below the window frame 1 is a known drainage sill 3 which comprises a flat body 4 having at one edge a depending box 5 to be disposed on the outside surface of a room and an upstanding trapezoidal section 6 at the outer edge to face the inside of the room. The sill may be formed of a plastics material, e.g. unplasticised polyvinyl chloride. The device ofthe invention is interposed between the underside of the frame 1 and the drainage sill 3. The device comprises a lower part 7 and an upper part 8. The lower part consists of a flat body 9 having an inner upturned edge portion 10 and an outer sharply downturned portion 11 which projects beyond the outer room wall.The upper part consistsofa flat roof 12 to underlie the windowframeand a depending vertical outerwall 13 and an inclined innerwall 14. Slots 15 are present in the inclined wall 14. The device does not extend the full length of the window, as can be seen. In use, moisture within the room tends to condense in the inside edge portion 14 and to pass th rough the drain slots 15. From there it will be directed towards the outside and may pass sidewards out ofthe device and exit along the sill 3. In the embodiment of Figure 2 the device ofthe invention is integrallyformed with the drainage sill. The roof 12 underlies the frame 1 and the sidewalls 13 and 14 are integral with the edge portions Sand 6 of the sill, respectively. Slots 15 are present in the wall 14, and further slots 16 are present in the outer wall 13. The member operates in the same way as the embodiment of Figure 1, same that fins 17. 18 are presentto increase the surface area on which moisture may condense and escape respectively. In the embodiment of Figure 3the member comprises a wall 19 extending between two window jambs 20. On the inside the member has fins 17 which overlie the section 5 ofthe drainage sill 3. At the outside the member has a box section 21 which is exposed to the atmosphere. The member operates as described above, moisture condensing on the fins being directed into the draining sill andthendrawn out of the room by the temperature of the box section 21. CLAIMS

1. A device for providing dehumidification of a room, comprising a heat conductive member adapted to be located in a through hole in a wall ofthe room, a first part ofthe member being in contact with the atmosphere within the room and a second part of the member in contact with the atmosphere outside the room, the member andiorthe hole being shaped to allow moisture forming on the member to drain outside the room.

2. A device as claimed in Claim 1, wherein the member is supported in the hole so that its first part is upturned and its second part is downturned to provide Thedrawing(s) originally filed was (were) informal and the print here reproduced is taken from a laterfiledformal copy.

a drain path through the hole.

3. A device as claimed in Claim 1 or 2 wherein the length and dimensions ofthe member are so chosen in relation to those of a hole between a window frame and a sill in which the member isto be located that in use one end of the memberwill extend upwardly inside the window and the other end of the member will project from the hole downwardly outside the window.

4. A device as claimed in Claim 1, wherein the member has fins to increase the surface area on which moisture within the room may condense.

5. A device as claimed in any preceding Claim, and including a sill component of waterproof, heatinsulating material and shaped so asto provide an inclined drainage surface.

6. Adevice as claimed in any one of the preceding Claims, wherein the heat-conductive member is of aluminium.

7. A device for providing dehumidification of a room substantially as described with reference to and as shown in Figure 1, Figure 2 or Figure 3 ofthe accompanying drawings.