| 摘要 |
<p>The invention is a device 10 to enhance air cooling of heat dissipating components of an electrical or gas appliance by assisting convection over the heat dissipating components. The device provides a housing 12 adapted to fit over the components so as to define an air flow channel over the components, and has a vertical component which facilitates a "stack" or'chimney' effect to provide cooling air flow. The housing has an inlet 20 at a lower extremity and an outlet 22 at an upper extremity and in use air is drawn in at the bottom of the housing and exhausted at the top. The air for cooling can be drawn from within the inside of a building or from a building exterior, for example via grille openings 40, 44. The device may include a seal and be retrofitted to an existing appliance by use of fixings such as Velcro, magnetic means, etc, or may be pre-attached to the appliance during manufacture. The housing may include a tapered form to assist with the chimney effect, and may be manufactured from sheet metal or plastics material.</p> |
